f |»o. 1324. ELASMOBEANCIIIA TE FISHES—JORDAN AND FO WLKH. 635 



28. CENTROSCYLLIUM Miiller and Henle. 



Ceiiirusci/llium Mullek and Henle, Sy.steiuatisflie Bcs(:lireil)uiig (k-r riaj^ioHtonieii, 

 1838, p. 191 {fabricii). 



Teeth e(|iial in both jaw.s, very .small, straig-lit, pointed, each Avith 1 

 |or 2 smaller cusps on each side at base; mouth crescent-shaped, with a 

 jstraight, oblique groove at its angle; spiracles moderate; gill-openings 

 Irather narrow; dorsal fins small, each with a strong spine; the second 

 [dorsal entirelv behind the ventrals. 



i {Kevrpoy^ spine; (TKvXXiov^ Scylliuiii^ an allied genus, from ffKvXXoo^ 

 [to rend or tear to pieces.) 



30. CENTROCYLLIUM RITTERI Jordan and Fowler, new species. 



\ 



>| Head 5^ in length; snout about 8f in head; interorbital space 2; 

 width of mouth 2; eye about 5; space betAveen spiracles 2^; pectoral 

 ibout 2. 



Body elongate; head ver}- broad and depressed, flattened above; 

 snout short, very broad, flattened above, rounded; eye large, near 

 snout; nostrils large, inferior, mid^vay between tip of snout and eye; 



Fig. 0.— CENTKOCYJ.I.IVJI kitteri. 



mouth distant from tip of snout a space equal to a trifle more than 

 interorbital width; teeth very sharp, tricuspid, alike both jaws; lips 

 irather thin, a labial fold at corners of mouth; interorbital space broad, 

 Igreater than space between spiracles. Spiracles large, superior, 

 Ibehind eyes. 



\ I Bod}^ covered with small, single prickles, scattered, though not pres- 

 ient on lower surface of snout, small on lower abdominal surface. 

 -Head with many pores, especially on lower surface of snout. 

 I First dorsal spine smaller than second, slightly more than half 

 I height of fin; second dorsal spine long, curved, but not quite to tip of 

 ,tin; origin of first dorsal nearer that of second than the tip of snout, 

 inserted w^ell behind pectoral; second dorsal nearer first dorsal than 

 tip of caudal, tip of fin anteriorly not extending for more than half 

 tthe space between its base and origin of upper caudal lobe; pectoral 

 ifins broad, short, about equal to width of snout in front of eyes; ven- 

 |trals small and entireh^ in front of second dorsal; caudal moderate, 

 less than space between two dorsal spines. Caudal peduncle long, 

 irather slender, thick, flattened above and below. Lateral line with 

 : pores, rather far apart, running superiorly in front and along sides. 



