5o8 Memoir Sears Foundation for Marine Research 



4, 1930: 497 (Atlant.) ; Bull. Amer. Mus. nat. Hist., yo (i), 1936: 86 (descr., ill., Medit. spec); 



Cadcnat, Rev. des Trav. Peches Marit., 10 (4), 1937: 432 (Azores; special fishery for leather); Fowler, 



Bull. U.S. nat. Mus., loo {13), 1941: 267 (descr., refs., Atlant. and Pacif.). 

 Squalus (Srymnus) lichia Van der Hoeven, Handb. Dierkundc, 2, 1855: 260. 

 Scymnor/iiuu! licha Garman, Mem. Harv. Mus. comp. Zool., ^6, 1913: 237 (descr.); Rey, Fauna Iberica 



Feces, 1, 1928: 474, pi. 5, fig. I (Iberian coasts) ; Uriarte and Mateu, Notas Inst. esp. Oceanogr., (2) 5j, 



1931: 26 (Canaries); Fraser-Brunner, Proc. R. Irish Acad., 42, 1935: 320 (Irish Atlant. slope, color); 



Nobre, Fauna Marinha Port. Vert., i, 1935: 460, pi. 64, fig. 200 (descr., ofl[ Portugal) ; Tortonese, Atti 



Soc. ital. Sci. nat., yy, 1938: 311 (Medit.). 

 Scymnorhinus licki {Scymnus lichia) Holmgren, Acta zool., 22 (1-3), 1941: 24 (skull). 



2. South .Africa and Pacific; apparently referrable to D. licha-y 



Scymnus lichia Parker, Trans. Proc. N. Z. Inst., /f, 1883: 223, pi. 31, 32 (descr., ill., N. Zealand) ; Ishikawa 



and Matsuura, Prel. Cat. Fish. Mus. Tokyo, 1897: 61 (Japan). 

 Dalatias americanus Jordan and Snyder, Annot. zool. jap., j, 1901 : 129 (Japan). 

 Dalalias licha Jordan and Fowler, Proc. U.S. nat. Mus., 2(5, 1 903: 637 (Japan) ; Izuka and Matsuura, Cat. zool. 



Mus. Tokyo, 1920: 188 (Japan) ; Fowler, Proc. Pan-Pacif. sci. Congr., 4, 1 930: 497 (Aust., N. Zealand, 



Japan, Atlant.); Bull. U.S. nat. Mus., 100 {13)-, 1941: 267 (descr., listed Japan, also Atlantic and 



Medit.). 

 Scymnorhinus licha McCulloch, Res. "Endeavour," 2 (3), 1914: 81, pi. 14 (ill., Aust.) ; Waite, Trans. Proc. 



N. Z. Inst., 46, 1914: 128, pi. 4, fig. I (ill., N. Zealand); Rec. S. Aust. Mus., 2, 1921: 24, fig. 33; 



Handb. Brit. Sci. Guild, Fish. S. Aust., 1923: 43; Phillipps, N. Z. J. Sci. Tech., 10, 1 928: 224 (N. 



Zealand). 

 Scymnorhinus fhillifpsiWhltley, Aust. Zool., 6, 1 931 : 3 10; Fish. Aust., i, 1940: 150 (ill., Aust., N. Zealand). 

 Pseudoscymnus bosliuensis Herre, Copeia, 1935: 124 (descr., Japan) ; Fowler, Bull. U.S. nat. Mus., 100 (z^), 



1941: 275 (descr., Japan). 

 Scymnorhinus hrevipinnis Smith, Trans, roy. Soc. S. Afr., 24, 1936: I (descr., S. Afr.). 

 Dalatias fhilliffsi Fowler, Bull. U.S. nat. Mus., 100 (rj), 1941: 268 (Aust., N. Zealand). 

 Dalatias brevifinnis Fowler, Bull. U.S. nat. Mus., lOO (rj), 1941 : 268 (S. Afr.). 



Genus Isistius Gill, 1864 



Isistius Gill, Proc. Acad. nat. Sci. Philad., 1864: 264; type species, Scymnus brasiliensis Quoy and Gaimard, 

 1824, monotypic. 



Generic Synonyms: 



Scymnus (in part) Quoy and Gaimard, Voy. "Uranie," Zool., 1824: 197; not Scymnus Cuvier, 1817. 



Dalatias (in part) Gray, List. Brit. Mus., /, 1851 : 76; not Dalalias Rafinesque, I 8 10. 



SyW«j Johann, Z. Wiss. Zool., 66, 1891 : 152; for S. {Scymnus) Jul gens Bennett, 1 840; not Squalus Linnaeus, 



1758. 

 Leius Kner, Denkschr. Akad. Wiss. Wien., 24, 1865: 9; type species, L. ferox Kner, equals ScyTnnus brasiliensis 



Quoy and Gaimard, 1824. 



Generic Characters. Dalatiidae without dorsal fin spines; snout in front of mouth 

 much shorter than from front of mouth to origin of pectorals; caudal peduncle without 

 lateral ridges or precaudal pits; pit at corner of mouth prolonged below upper lip and 

 rearward as a narrow furrow; expanded lips at corners of mouth with special cartilaginous 

 supports; teeth widely unlike in the 1 jaws, the uppers slender, thorn-like, widely spaced, 

 the lowers with triangular smooth-edged or partly serrate cusp and quadrate base, each 



17. See page 501. 



