CAPRELLIDAE OF WESTERN NORTH ATLANTIC 25 



Distribution. — Type-locality: Black Sea. 



Other records: Bay of Biscay; Mediterranean coast of France; 

 Mediterranean and Adriatic coasts of Italy; Sicily; Ukranian and 

 Roumanian Black Sea; Ciierchell, Algeria; llufisque, Senegal; South 

 Africa; South Arabian coast; Bermuda; Rio de Janeiro, Brazil; Oahu, 

 Hawaii; S, Sakhaline; Pacific coast of Holdiaido and Honshu, Japan; 

 Amakusa Tomioka and Okinojima, Kyushu, Japan; Sea of Japan; 

 Korean Straits; Southeastern Australia; Coles Bay, Tasmania. 



New records: Virginia Key, Key Biscayne, and Matheson Ham- 

 mock, Fla.; Loggerhead Key, Tortugas; St. Croix, Virgin Islands; 

 Trinidad. 



Remarks. — This species is quite widespread and pantropical in 

 its distribution. It has been collected on sea grass, the phaeophytes 

 Cystoseira and Sargassurn, and the bryozoan Bugula. 



C. danilevskii is easily distinguished from the other species of 

 Caprella in the western North Atlantic by its unusual gill shape, its 

 distinctive abdomen, and the short dactylus of the male gnathopod 2. 



Caprella equilibra Say, 1818 



Figures 12, 13, 55 



Caprella equilibra Say, 181S, pp. 391-392.— de Kay, 1844, p. 41.— White, 1847, 

 p. 92.— Gibbes, 1848, p. xvi; 1849, p. 23.— Stebbing, 1888, pp. 1254-1256; 

 1910a, p. 466; 1910b. p. 653.— Kunkel, 1910, pp. 106-108, fig. 4. —Barnard, 

 1916, p. 281; 1930, p. 440; 1932, p. 300.— Schellenberg, 1928, p. 678.— 

 Procter, 1933, p. 256.— Edmonson and Mansfield, 1948, pp. 214-216, fig. 

 7. — Ricketts and Calvin, 1952, p. 68. — Dougherty and Steinberg, 1953, pp. 

 44, 47; 1954, pp. 170, 171.— Day and Morgan, 1956, p. 303.— Steinberg and 

 Dougherty, 1957, pp. 273-274, figs. 1-2.— Johnson, 1965, appendix 2, p. 2, 

 appendix 3, p. 4; 1966, appendix 2, p. 2.— McCain, 1965, pp. 193-194, fig, lb, 

 f; 1966, p. 92. — Johnson and Juskevice, 1965, p. 39. 



Caprella Januarii Kr6yer, 1842-43, pp. 499-504, pi. 6, figs. 14-20.— Dana, 1853, 

 pp. 819-820; 1855, pi. 55, fig. 2.— lierklots, 1861, p. 43. 



Caprella Esmarkii Boeck, 1861, pp. 674-675; 1871a, p. 275 (195); 1873-76, pp. 

 693-694, pi. 32, fig. 5. 



Caprella laticornis Bocck, 1861, pp. 675-676; lS71a, p. 274 (194); 1873-76, pp. 

 689-691, pi. 32, fig. 10. 



Caprella aequilibra.— Bate, 1862, pp. 362-363, pi. 57, fig. 5; 1887, pi. 175.— Bate 

 and Westwood, 1868, pp. 71-73.— Parfitt, 1873, p. 251.— Gamroth, 1878, 

 pp. 101-126, pis. 8-10.— Haller, 1879a, p. 232; 1879b, p. 404.— Mayer, 1882, 

 pp. 45-48, pi. 1, fig. 7, pi. 2, figs. 1-11, pi. 4, figs. 20-25, pi. 5, figs. 16-18; 

 1890, pp. 48-50, pi. 2, figs. 42-43, pi. 4, figs. 35-37, pi. 6, figs. 18a, 37; 1903, 

 pp. 89-92, pi. 3, figs. 29-34, pi. 7, figs. 66-69; 1912, pp. 4, 5.— Marion, 

 1883, p. 49.— Miers, 1884, p. 320.— Carus, 1885, p. 388.— Ilaswell, 1884 

 (1885), pp. 999-1000.— de Guerne, 1886, p. xUii.— Norman, 1886, p. 26; 

 1905a, p. 26; 1905b, p. 85.— Thomson and Chilton, 1885 (1886), p. 142.— 

 Chevreux, 1887a, p. 335; 1898, p. 483; 1900, p. 120.— Barroia, 1888, pp. 58, 

 77.— G. Sars, 1895, pp. 663-664, pi. 238, fig. 3.— d'A. Thompson, 1901, 

 p. 41.— Graeffe, 1902, p. 19.— Hutton, 1904, p. 261.— Marine Biol. Assoc, 

 1904, p. 242; 1931, p. 198; 1957, p. 233.— Norman and Scott, 1906, pp. ix, 



