Cypridina inermis (G. W. Müller, 1866)
Cypridina inermis: Poulsen, 1962, p. 264, fig. 122.
Known occurrence. —Living at station off Hiratoshima (depth 75 m), (Lat. 33°10'N, Long. 129°18'E), Nagasaki Pref., collected in September 7, 1897 (Poulsen, 1962).

Cypridina? japonica Brady, 1866
Cypridina japonica Brady, 1866, p. 386, Pl. 62, fig. 8a-d; Brady, 1880, p. 153; Brady, 1897, p. 88; G. W. Müller, 1912, p. 51; Hanai, 1959, p. 426, 427; Hanai, 1974, p. 117, 119.
Types. —HMNT-collection.
Type locality. —Exact locality unknown, Japan (towing-net).
Known occurrence. —Known only from Japan, collected by A. Adams (Brady, 1866).
Remarks. —Generic placement needs further study.

Cypridina noctiluca Kajiyama, 1912
Cypridina (Pyrocypris) noctiluca Kajiyama, 1912, p. 612, Pl. 9, fig. 15.
Cypridina noctiluca: Haneda, 1952, p. 14, fig. 1; Haneda, 1953, p. 103, 104, fig. 2 (above); Haneda, 1955, p. 357, 358, fig. 8; Haneda, 1957, p. 98, 99; Tsuji, Lynch and Haneda, 1970, p. 386.
Cypridina (Cypridina) noctiluca: Hanai, 1959, p. 427; Yamaji; 1974, p. 190, fig. 4.
Types. —UMUT collection. Holotype not designated. All of the original type material missing.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the type locality (Kajiyama, 1912). Living at Hachijo Is., Tokyo Metropolis (Haneda, 1953).
Remarks. —This species is close to Cypridina (Pyrocypris) japonica G. W. Müller. For further information see remarks on Cypridina sp. Hanai.

Cypridina sp. Hanai, 1959
Cypridina (Pyrocypris) japonica G. W. Müller, 1890, p. 233, 234, Pl. 25, fig. 2, Pl. 26, fig. 10.
Halocypris? sp., Doflein, 1906, p. 134.
Pyrocypris japonica: G. W. Müller, 1912, p. 13; Yatsu, 1917, p. 438, 439.
Cypridina (Cypridina) sp. Hanai, 1959, p. 427.
Types. —Holotype of Cypridina (Pyrocypris) japonica G. W. Müller not designated.
Type locality. —Enoshima, Fujisawa-shi, Kanagawa Pref.
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period 1873 to 1876.
Remarks. —Cypridina (Pyrocypris) japonica G. W. Müller, 1890 is a primary homonym for Cypridina japonica Brady, 1866. The species, therefore, needs a new name. Later, Kajiyama (1912) described a new species Cypridina (Pyrocypris) noctiluca Kajiyama from the same general area, which is very similar in its morphology to this species. There fore, before replacing the rejected homonym by a new name, the relationships between the specimens described by both G. W. Müller (1890) and Kajiyama (1912) require further study.

Codonocera elongata Poulsen, 1962
Codonocera elongata Poulsen, 1962, p. 324-327, figs. 147, 148.
Types. —Syntypes, ZMUC-collection, 3 ().
Type locality. —Station W. of Tsushima (Lat. 34°10'N, Long. 129°9'E), Nagasaki Pref.
Known occurrence. —Living at the type locality, collected in May, 17, 1912.

Codonocera weberi G. W. Müller, 1906
Codonocera weberi: Haneda, 1953, p. 103.
Known occurrence. —Living in Hachijo Is., Tokyo Metropolis (Haneda, 1953).

Heterodesmus adamsii Brady, 1866
Heterodesmus adamsii Brady, 1866, p. 387, 388, Pl. 62, fig. 6a-h; G. W. Müller, 1912, p. 398; Hanai, 1959, p. 430, 431; Sylvester-Bradley, 1961, p. Q398, Q399, fig. 321-3; Hanai, 1974, p.117-119.
Types. —HMNT-collection.
Type locality. —Exact locality unknown, Japan (towing-net).
Known occurrence. —Known only from Japan, collected by A. Adams (Brady, 1866).
Remarks. —The genus is closely allied to Entomoconchus M'Coy (Brady, 1866, p. 387, 388; Brady and Norman, 1896, p. 628); referrable to Codonocera Brady (Brady, 1902, p. 188); closely related to Siphonostra Skogsberg (Skogsberg, 1920, p. 299, 300); synony-mized Siphonostra with Heterodesmus (Sylvester-Bradley, 1961, p. Q398); closely related to and perhaps congeneric with Amphisiphonostra Poulsen (Poulsen 1962, p. 249, 254).

Melavargula japonica Poulsen, 1962
Melavargula japonica Poulsen, 1962, p. 225-228, figs. 106, 107.
Types. —Holotype, ZMUC-collection (); paratypes, ZMUC-collection, ca. 30 ().
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (shallow water).
Known occurrence. —Living at the type locality, collected in 26 May, 1914.
Remarks. —The specimen described by Kajiyama (1912) as Cypridina punctata Dana is close to this species. Both Kajiyama's and Poulsen's specimens are collected at Misaki. For identification, however, further study is required.

Melavargula sp. Hanai, 1972
Cypridina punctata Dana, Kajiyama, 1912, p. 611, Pl. 9, figs. 12-14.
Illustrated specimens. —UMUT-collection. Specimens illustrated by Kajiyama (1912) missing.
Locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the above locality (Kajiyama, 1912).
Remarks. —Illustrated specimen is almost identifiable with Melavargula japonica Poulsen. For further information see remarks on Melavargula japonica Poulsen.

Paradoloria pellucida (Kajiyama, 1912)
Cypridina pellucida Kajiyama, 1912, p. 611, Pl. 9, figs. 9-11.
Cypridina sp. Haneda, 1953, p. 103, fig. 1 (below).
Paradoloria dorsoserrata (G. W. Müller, 1909), Poulsen, 1962, p. 149-152, fig. 76 (part).
Paradoloria pellucida: Hanai, 1974, p. 119-124, text-fig. 1-4.
Types. —UMUT-collection. Holotype not designated. All of the original type material missing.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the type locality (Kajiyama, 1912). Off Misaki, Miura-shi, Kanagawa Pref., below tide line, collected in May 26, 1914 (Poulsen, 1962). Living, off Nakanogo, Hachijo Is., Tokyo Metropolis, collected in September 17, 1952 by Y. Haneda (Haneda, 1953; Hanai, 1974).

Vargula hilgendorfii (G. W. Müller, 1890)
Cypridina hilgendorfii G. W. Müller, 1890, p. 228-230, Pl. 25, fig. 9, Pl. 26, figs. 1-3, Pl. 27, figs. 23, 30; Watanabe, 1897b, p. 69, 70; G.W. Müller, 1912 p. 12; Kajiyama, 1912, p. 610, 611, Pl. 9, figs. 1-8; Harvey, 1917, p. 319; Yatsu, 1917, p. 435-439; Kanda, 1918, p. 409, 410; (also 1920a, p. 544, 545); Kanda, 1922, p. 545, 546; Harvey, 1924, p. 620; G. W. Müller, 1927, p. 420, fig. 373; Komai, 1927, p. 1192, fig. 2298; Y. K. Okada, 1927, p. 478-486,4 figs.; Hayashi and Okuyama, 1929, p. 250, 251; Takagi, 1936, p. 344-349; Okada and Kato, 1946, p. 64-66; Ueno, 1947, p. 870, fig. 2492; Okada and Kato, 1949, p. 21- 25; Haneda, 1952, p. 12-14, 2 figs.; Irie, 1953, p. 11-13; Nakamura, 1954, p. 108-127; Haneda, 1955, p. 356-358, fig. 7; Horikoshi, 1955, p. 414; Horikoshi, 1956, p. 64; Haneda, 1957, p. 98, 99; Hanai, in Ueno and Hanai 1965, p. 454, figs. 414-1, 2; Tsuji, Lynch and Haneda, 1970, p. 386.
Cypridina mediterranea Dana, Watanabe, 1897a, p. 86, 87.
Cypridina. (Vargula) hilgendorfii: Skogsberg, 1920, p. 247; Hanai, 1959, p. 427; Yamaji, 1969, p. 190, fig. 5.
Vargula hilgendorfii: Hanai, 1974, p. 117, 118.
Types. —ZMB-collection. Holotype not designated.
Type locality. —Exact locality unknown, coast of Japan.
Known occurrence. —Living along the coast of Japan, abundant in 15 fathoms, collected by F. Hilgendorfin the period of 1873 to 1876 (G. W. Müller, 1890), Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912). Living at Tsuyasaki, Munakata-gun; Nishikoen, Fukuoka-shi, Fukuoka Pref.; Nagashima, Okushi-mura, Nishisonoki-gun, Nagasaki Pref. (Kanda, 1918,1922), Living off Uno-ko.Setonaikai, Okayama Pref, (Ha yashi and Okuyama, 1929). Living at Tateyama, Awa-gun, Chiba Pref.; Sugashima, Shima-gun, Mie Pref. (Okada and Kato, 1946, 1949). Living along the Pacific coast of Japan (Ueno, 1947). Living at Hayama, Kanagawa Pref. (all year round, especially abundant in July to October) (Haneda, 1952). Living at Moroiso, Aburatsubo and Miyata, Miura-shi, Kanagawa Pref. (Horikoshi, 1955, 1956).

Vargula spinosa Poulsen, 1962
Vargula spinosa Poulsen, 1962, p. 192-196, figs. 95, 96.
Types. —Holotype, ZMUC-collection, () with 15 embrios; paratype, ZMUC-collec- tion, 1 () juvenile.
Type locality. —Okinose, Sagaminada, Sagami Bay, (depth 180 m, hard bottom).
Known occurrence. —Living at the type locality, collected in April 26, 1914.

Macrocypridina castanea (Brady, 1897)
Macrocypridina castanea var. rotunda Poulsen, 1962, p. 136-145, fig. 72.
Macrocypridina castanea: Hanai, 1974, p. 119.
Known occurrence. —Living at St. 3723-II (Lat. 25°31'N, Long. 125°51'E), N. of Miyakojima, Okinawa Pref., collected by Dana Expedition in May 30, 1929 (Poulsen, 1962).
Remarks. —Macrocypridina castanea (Brady, 1897) referred to by Poulsen as var. rotunda is probably an Indo-Pacific subspecies (Hanai, 1974).

Philomedes ijimai Kajiyama, 1912
Philomedes ijimai Kajiyama, 1912, p. 614, Pl. 9, figs. 20-22.
Types. —UMUT collection. Holotype not designated. All of the original type material missing.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the type locality.

Euphilomedes japonica (G. W. Müller, 1890)
Philomedes japonica G. W. Müller, 1890, p. 236, 237, Pl. 25, figs. 18, 19, Pl. 26, figs. 5, 6, 11, 13, 18, Pl. 27, figs, 26, 27, 29, 31, 32; Kajiyama, 1912, p. 613, 614, Pl. 9, figs. 16-19 (part); Komai, 1927, p. 1192, fig, 2299; Ueno, 1947, p. 870, fig. 2493; Hanai, 1959, p. 435 (part); Hanai, in Ueno and Hanai, 1965, p. 454, fig. 417 (1-7).
Types. —ZMB-collection. Holotype not designated.
Type locality. —Enoshima, Fujisawa-shi, Kanagawa Pref. (10-12 fathoms).
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period of 1873 to 1876. (G. W. Müller, 1890). Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912).
Remarks. —Euphilomedes japonica, new combination by Poulsen, 1965.

Euphilomedes sordida (G. W. Müller, 1890)
Philomedes sordida G. W. Müller, 1890, p. 237, 238, Pl, 25, fig, 17, Pl. 26, fig. 17, Pl. 27, figs. 28, 33.
Philomedes japonica G.W. Müller, Kajiyama, 1912, p. 613, 614 (part); Hanai, 1959, p. 435 (part).
Types. —ZMB-collection. Holotype not designated.
Type locality. —Port of Hakodate, Hokkaido (Recent).
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period of 1873 to 1876 (G. W. Müller, 1890).
Remarks. —Euphilomedes sordida, new combination by Poulsen, 1965.

Cylindroleberis? mariae (Baird, 1850)
Cylindroleberis oblonga (Grube), Kajiyama, 1912, p. 616, 617, Pl. 9, fig. 29, 30.
Cylindroleberis mariae: Hanai, 1959, p. 425, 426.
Known occurrence. —Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912).
Remarks. —Generic and specific identification of Japanese specimens needs further study.

Cylindroleberis? obalis Kajiyama, 1912
Cylindroleberis obalis Kajiyama, 1912, p. 618, Pl. 9, figs. 39, 40.
Types. —UMUT collection. Holotype not designated. All of the original type material missing.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the type locality.
Remarks. —Generic identification needs further study. In Kajiyama's original description of this species, the specific name appeared in two passages. In the heading of the description of the new species, the name appeared as Cylindroleberis obalis n. sp., whereas, in the explanations of figures, it appeared correctly as C. ovalis n. sp. The name C. ovalis is, however, preoccupied by C. ovalis G. W. Müller, 1908. Therefore, in applying article 32 (b) of the International Code of Zoological Nomenclature, C. obalis is here adopted as the name of this species.

Parasterope jenseni Poulsen, 1965
Parasterope jenseni Poulsen, 1965, p. 387-391, fig. 128.
Types. —Holotype, ZMUC-collection, (); paratype, ZMUC-collection, 1 ().
Type locality. —Okinose, Sagami Bay (depth 180 m).
Known occurrence. —Living at the type locality (depth 180 m and 500 m), collected in April 26, 1914.

Parasterope obesa Poulsen, 1965
Parasterope obesa Poulsen, 1965, p. 364-367, fig. 120.
Types. —Holotype, ZMUC-collection, () with 12 embryos in the broodchamber.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (shallow water).
Known occurrence. —Living at the type locality, collected in May 26, 1914.

Parasterope quadrata (Brady, 1898)
Cylindroleberis quadrata: Kajiyama, 1912, p. 618, Pl. 9, figs. 34-38; Hanai, 1959, p. 426.
Known occurrence. —Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912).
Remarks. —Parasterope quadrata, new combination by Kornicker, 1975.

Cyclasterope hilgendorfii (G. W. Müller, 1890)
Asterope hilgendorfii G. W. Müller, 1890, p. 241, Pl. 25, fig. 15, Pl. 26, figs. 8, 12, Pl. 27, figs. 4-6, 17.
Types. —ZMB-collection. Holotype not designated.
Type locality. —Enoshima, Fujisawa-shi, Kanagawa Pref. (12 fathoms).
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period of 1873 to 1876.
Remarks. —Cyclasterope hilgendorfii, new combination by Skogsberg, 1920.

Asteropteron fuscum (G. W. Müller, 1890)
Asterope fusca G. W. Müller, 1890, p. 242, 243, Pl. 25, figs. 11-13, Pl. 27, figs. 19-22, 25.
Cyclasterope fusca: G. W. Müller, 1912, p. 49, 50.
Cylindroleberis fusca: Kajiyama, 1912, p. 617, fig. 31.
Asteropteron fuscum: Skogsberg, 1920, p. 443; Poulsen, 1965, p. 217.
Types. —ZMB-collection. Holotype not designated.
Type locality. —Enoshima, Fujisawa-shi, Kanagawa Pref. (15 fathoms).
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period of 1873 to 1876 (G, W. Müller, 1890). Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912).

Cycloleberis brevis (G. W. Müller, 1890)
Asterope brevis G. W. Müller, 1890, p. 239, 240, Pl. 25, figs. 10, 14, Pl. 26, figs. 7, 12, Pl. 27, figs. 7-10, 15, 16.
Cylindroleberis brevis: Kajiyama, 1912, p. 617, 618, Pl. 9, figs. 32, 33.
Types. —ZMB-collection. Holotype not designated.
Type locality. —Enoshima, Fujisawa-shi, Kanagawa Pref. (12 fathoms).
Known occurrence. —Living at the type locality, collected by F. Hilgendorf in the period of 1873 to 1876 (G. W. Müller, 1890). Living at Misaki, Miura-shi, Kanagawa Pref. (Kajiyama, 1912).
Remarks. —Cycloleberis brevis, new combination by Skogsberg, 1920.

Sarsiella misakiensis Kajiyama, 1912
Sarsiella misakiensis Kajiyama, 1912, p. 615, Pl. 9, figs. 23-28.
Types. —UMUT collection. Holotype not designated. All of the original type material missing.
Type locality. —Misaki, Miura-shi, Kanagawa Pref. (Recent).
Known occurrence. —Living at the type locality.

Halocypris brevirostris (Dana, 1849)
Halocypris brevirostris: Brady, 1880, p. 166, 167, Pl. 39, figs. 1-11; Poulsen, 1969, p. 63-77.
Halocypris inflata (Dana), Hanai, 1959, p. 430 (part).
Known occurrence. —Living at Challenger St. 231 (Lat. 31°8'N, Long. 137°8'E), Shi koku ocean basin, collected in April 9, 1875 (Brady, 1880). Danish Dana Expedition, St. 3723 (Lat. 25°30.5'N, Long. 125°28'E), N. of Miyako Is., Okinawa Pref.; St. 3724 (Lat. 28°31'N, Long. 125°05.5'E), East China Sea (Poulsen, 1969).

Fellia cornuta (G. W. Müller, 1906)
Fellia cornuta: Poulsen, 1969, p. 78-89, figs. 33-36.
Known occurrence. —Living, off Misaki, Miura-shi, Kanagawa Pref., ringtrawl, depth 600 m, collected in July 9, 1914, deposited in ZMUC (Poulsen, 1969).

Halocypria globosa Claus, 1874
Halocypria globosa: Poulsen, 1969, p. 44-62, fig. 16.
Known occurrence. —Living at Danish Dana Expedition, St. 3723 (Lat. 25°30.5'N, Long. 125°28'E), N. of Miyako Is., Okinawa Pref. (Poulsen, 1969).

Conchoecia acuticosta G. W. Müller, 1906
Conchoecia acuticosta: Chavtur and Schornikov, 1973, p. 1639, 1642.
Known occurrence. —Living at a station (Lat. 40°54'N, Long. 150°38'E), off Hok- kaido, Pacific Ocean, collected in April 22, 1962 (Chavtur and Schornikov, 1973).

Conchoecia elegans G. O. Sars, 1866
Conchoecia elegans: Yamaji, 1969, p. 190, fig. 2; Chavtur and Schornikov, 1973, p. 1639, 1642.
Known occurrence. —Living in northern Japan, cold water (Yamaji, 1969). Living at a station (Lat. 40°54'N, Long. 150°38'E), off Hokkaido, Pacific Ocean, collected in April 22, 1962 (Chavtur and Schornikov, 1973).

Conchoecia haddoni Brady and Norman, 1896
Conchoecia haddoni: Chavtur and Schornikov, 1973, p. 1639, 1642.
Known occurrence. —Living at a station (Lat. 40°54'N, Long. 150°38'E), off Hokkaido, Pacific Ocean, collected in April 22, 1962 (Chavtur and Schornikov, 1973).

Conchoecia imbricata (Brady, 1880)
Halocypris imbricata Brady, 1880, p. 167, 168 (part), Pl. 41, figs. 1, 3-9, Pl. 42, figs. 1-8 (not), Pl. 41, figs. 2, 10.
Conchoecia imbricata: Hanai, 1959, p. 424, 425; Yamaji, 1969, p. 190, fig. 3.
Known occurrence. —Living at Challenger St. 231 (Lat. 31°8'N, Long. 137&dge;8'E), Shikoku ocean basin, collected in April 9, 1875 (Brady, 1880).
Remarks. —Conchoecia imbricata, new combination by G. W. Müller, 1891. G. W. Müller (1912, p. 91) pointed out that the original description of this species was based on two species, Conchoecia imbricata (Brady, 1880) and Conchoecia plinthina G. W. Müller, 1906. Therefore, these two species are listed in this paper, pending reexaminaion of the Challenger specimens from St. 231.

Conchoecia lepida Chavtur, 1973
Conhoecia lepida [sic] Chavtur, in Chavtur and Schornikov, 1973, p. 1639-1641, fig. 1.
Types. —Holotype, FESC-2-1103, ().
Type locality. —A, station (Lat. 40°54'N, Long. 150°38'E), off Hokkaido, Pacific Ocean.
Known occurrence. —Living at the type locality, collected in April 22, 1962.

Conchoecia meraca Chavtur, 1973
Conchoecia meraca Chavtur, in Chavtur and Schornikov, 1973, p. 1641, 1642, fig. 2.
Types. —Holotype, FESC-3-1104, ().
Type locality. —A station (Lat. 40°51'N, Long. 148°32'E), off Hokkaido, Pacific Ocean.
Known occurrence. —Living at the type locality, collected in April 22, 1962.

Conchoecia plinthina G. W. Müller, 1906
Halocypris imbricata Brady, 1880, p. 167, 168 (part), Pl. 41, figs. 2, 10 (not), Pl. 41, figs. 1, 3-9 (not), Pl. 42, figs. 1-8.
Conchoecia plinthina: Hanai, 1959, p. 425.
Known occurrence. —Living at Challenger St. 231 (Lat. 31°8'N, Long. 137°8'E), Shikoku ocean basin, collected in April 9, 1875 (Brady, 1880).
Remarks. —See Conchecia imbricata (Brady, 1880).

Conchoecia serrulata Claus, 1874
Halocypris atlantica Lubbock, Brady, 1880, p. 164-166, Pl. 40, figs. 1-15, Pl. 41, figs. 11, 12.
Conchoecia serrulata: Hanai, 1959, p. 425 (part); Yamaji, 1969, p. 190, fig. 1.
Known occurrence. —Living at Challenger St. 231 (Lat, 31°8'N, Long, 137°8'E), Shikoku ocean basin, collected in April 9, 1875; St. 232 (Lat. 35°11'N, Long. 139°38'E), Sagami Bay, off Kanagawa Pref., collected in May 12, 1875 (Brady, 1880).
Remarks. —G. W. Müller (1906, p. 98) pointed out that the specimens described by Brady, 1880 were not Halocypris atlantica Lubbock, 1856 but Conchoecia serrulata Claus, 1874.