CEPHALOSCYLLIUM ISABELLUM. 70 



short and joined to the anterior at the inner ends. Mouth wide, greatly arched, 

 distensible, labial folds rudimentary. Teeth small, numerous, with three to 

 five cusps, median cusp longest. Eye lateral, orbit elongate, lower lid include' 1 

 by the upper in closing. Spiracle behind the eye. Hindmost gill openings 

 above the pectoral. Dorsal behind the ventral origins. Second dorsal smaller 

 than the first and smaller than the anal. 



Eastern Pacific to New Zealand and Australia and Japan. 



Band across the head extended from eyes to hindmost gill openings 

 anal fin a little longer than the dorsal 



lower surfaces yellow .' . . . . isabellum (page 79) 

 Band across the head not reaching from eye to gill openings 

 interdorsal space not longer than base of first dorsal 



body with transverse bands and with spots; teeth small 



fins with blotches of dark on each side ventriosum (page 80) 



Band across the head obsolete; teeth minute 



interdorsal space longer than base of first dorsal 

 body marbled and blotched with darker 



fins nearly uniform .... umbratile (page 80) 



CEPHALOSCYLLIUM ISABELLUM. 



L'Isabelle Broussonet, 1780, M<5m. Acad, roy., p. 648. 



Squalus Isabella Bonnaterre, 1788, Ichth.. p. 0; Walbaum, 1792, Artedi, p. 514; Donndorf, 1798, 



Zool. beytr., 3, p. 836. 

 Squalus sabella Gmelin, 1789, Linne Syst., 1, p. 1489; Waite, 1910, Trans. N. Z. inst., 42, p. 384. 

 Scyliorhinus isabellus Blainv., 1816, Bull. Soc. philom., p. 121. 

 Scyllium laticeps Dumeril, 1853, Rev. et mag. zool., 34, p. 84, pi. 3, f. 2; 1865, Elasm., p. 323; Gunth., 



1870, Cat. fishes Brit, mus., 8, p. 404. 

 Cephaloscyllium laliceps Gill, 1861, Ann. N. Y. lye, 7, p. 408 (name only). 

 Scyliorhinus laticeps Regan, 1908, Ann. <fc mag. nat. hist., ser. 8, 1, p. 458. 



Body robust, somewhat depressed. Head short, broad. Snout short, 

 blunt. Nostrils large, anterior valves without cirri; far apart, not connected 

 with the mouth. A fold below the eye; orbit elongate. Mouth wide, much 

 arched. Teeth compressed, short, triangular, sharp, with a denticle at each 

 side of the base. Spiracles large, behind the eye. Two gill openings above 

 the pectoral. Pectorals large, subquadrangular, hind margin nearly straight. 

 Dorsals quadrangular; origin of the first dorsal above the vent; second smaller, 

 above the anal fin. Subcaudal of moderate depth, separated from the terminal 

 by a notch. Length about two feet eight inches. 



Brown, ashy reddish to yellowish, irregularly spotted and blotched with 



