32 Bulletin 47, United States National Museum. 



36. GALEORHINUS ZYOPTERUS, Jordan & Gilbert. 

 (OiL SHARK; SOUP-FIN SHARK.) 



Snout depressed, rather long, rounded at tip; nostrils nearer mouth 

 than tip of snout; teeth about , the 4 or 5 nearest the middle much 

 smaller, the median tooth of each jaw smallest, subtriangular, without 

 basal cusps; lateral teeth of both jaws similar, their points directed' 

 strongly outward; a sharp angle near middle of outer margin, below 

 which are 2 to 5 sharp cusps or serrations; eye large; second dorsal 

 scarcely i size of first. Dusky grayish, most of pectoral, tip of caudal, 

 and anterior portion of both dorsals black. L. 6 feet. Coast of Southern 

 California from San Francisco to Cerros Island; very abundant. Valued 

 for the oil in its liver, and for the fins, which are much prized by the 

 Chinese; the gelatinous fin rays making a fine soup. Closely related to 

 the European Tope (G. galeus, (L.) ), from which it may prove to be indis- 

 tinguishable. (&bv, soup ; Trrepbv, fin.) 



Galeorhinus zyopterus, JORDAN & GILBERT, Synopsis, 871, 1883, San Pedro, California. (Type, 

 No. 26973.) 



23. GALEOCERDO, Miiller & Henle. 



Galeocerdo, MULLER & PENLE, Plagiostomen, 59, 1838, (tiyrinus). 

 Boreogaleus, GILL, Ann. Lye. Nat. Hist. N. Y., vn, 411, 1861, (arcticus). 



Mouth crescent-shaped ; teeth alike in both jaws, large, oblique, coarsely 

 serrated on both margins, with a deep notch on outer margin ; spiracles 

 present ; caudal fin with a double notch ; a pit on the tail above and 

 below at the base of the caudal fin ; first dorsal opposite the space between 

 pectorals and veutrals. Large sharks, found in most seas. (^uAeof, a kind 

 of shark, like yaAr), the weasel ; nepdu, a fox or weasel.) 



37. GALEOCERDO TIGRINUS, Miiller & Henle. 

 (TIGER SHARK; ALECRIN ; TIGRONE.) 



Caudal fin forming about i of the total length, much longer than the 

 space between the dorsal fins; second dorsal somewhat in advance of the 

 anal; a long labial fold along the upper jaw. Color brown, with numer- 

 ous dark spots larger than the eye; adult nearly plain. Tropical seas, 

 not rare, occasionally northward to Cape Cod and to San Diego. L. 15 to 

 30 feet. A very large and fierce shark, known by its variegated color- 

 ation, the most formidable of the West Indian species.* (tigrinus, tiger- 

 like). 



Galeocerdo tigrinus, MULLER & HENLE, Plagiostomen, 59, 1838; GUNTHER, Cat., vm, 378, 1870; 



JORDAN & GILBERT, Synopsis, 21, 1883. 



Galeus maculatusj RANZANI, De Novis Speciebus Piscium, Dissert. Prima, 7, 1838, Brazil. 

 Galeocerdo maculatus, POEY, Synopsis, 455, 1868. 



* " Lehasacado del vientre del madre mas de 60 felos prontos a nacer vivos y apoblar el abismo." 

 Poeij. 



f We are unable to decide which of these two names of the same date, tigrinus and maculatus, is 

 entitled to priority. Common usage has accorded precedence to the work of Miiller & Henle. 



