Jordan and Ever maiui. — Fishes of Nortli America. 31 



34. RHIXOTRIACIS HENLEI, Gill. 



Suout produced, slender. L. 2.J feet. Color miitbriii reddish brown 

 above, pale below, the pectoral, ventral, and anal fins niar<;ined with 

 paler. Coast of California from Humboldt 15ay to Monterey, a rather rare 

 and imperfectly known species. (Named for Prof. J. Ilenle, the associate of 

 Johannes Miiller.) 



WiinolrUicis henlei. Gill, Pioc. Ac. Nat. Soi. I'hila., 1802, 4811, San Francisco. 

 Triads henlei, Joud.\n & GiLUF.irr, Synopsis, 20, 1883. 



21. TRIAKIS, Miiller & Henle. 



Triakis, MCller & Henle, Magazine of Natural History, ii, new BiTies, aC, 1838, {scijUimii). 

 (Triiwis, correctc'd spelling.) 



Body compressed, elongate; mouth large, crescent-shaped, with well- 

 developed long labial folds; teeth moderate, numerous, similar in both 

 jaws, each with a longer median cusp, and 1 or 2 smaller ones on each 

 side; eyes small, with nictitating membrane; spiracles small, behind the 

 eyes ; no pit at the root of the caudal ; no lower lobe to the caudal ; first 

 dorsal fin opposite the space between the pectorals and veutrals. Embryo 

 without placenta. Coloration variegated, black and gray. Pacific and 

 Indian Oceans. (rpF^r, three ; (W/f, point.) 



3.5, TRIAKIS SEMIFASCIATUM, Girard. 

 (Cat Shark; Leopakd Shark.) 



Snout moderately produced, rounded. Nostril with a broad anterior 

 flap. First dorsal fin nearly midway between the pectorals and veutrals; 

 the second dorsal not much smaller than the first, and partly in advance 

 of the ana4. Gray, the upper parts with well-defined black cross bands, 

 narrower than the interspaces ; a row of rounded black spots along the 

 sides of the body, alternating with the interdorsal crossbars. L. 3 feet. 

 Cape Mendocino to San Diego, common ; a handsome shark, readily known 

 by its variegated coloration, {seviifasciatus, half banded.) 



TViakis semifascialniii, GniAitn, Proc. Ac. Nat.Sci. Pliila. ,1854, 19C, Presidio de San Francisco; 



JoEDAN & Gilbert, Synopsis, 20, 1883; Gunther, Cat., viii, 384, 1870. 

 Muiteliis felis, Ayres, Proc. Cal. Ac. Sci., 1854, 17, San Francisco. 



22. GALEORHINUS, Blainville. 



(Topes.) 



Galmn,* Rapinesque, Caratteri Alcuui Nuovi Generi, 13, 1810, in part, (yidats, etc., although 



that species is not explicitly mentioned). 

 Citleorhimis, Blai.nville, Pull. Sci. Pliilom., 1810, 121, {yaleus). 

 O'lleus, CuviER, Regne Animal, Ed. i, 127, 1817, {(jnleus). 

 ICntjaleut:, GiLL, Proc. Ac. Nat. Sci. Phila., 1804, 148, (galeus). 



First dorsal opposite the space between the pectorals and veutrals; 

 mouth crescent-shaped, with the teeth alike in both jaws, oblicjue, 

 notched, and serrated; spiracles jiresent, small; nictitating membrane 

 present; no pit at the base of the caudal; caudal fin with a single notch. 

 Tropical seas. {ynTieui-, a kind of shark, like a weasel, /lu//, shark.) 



* See note under Galeus. 



