33. 8CYMNUS. 425 



2. Spinax pusillus. 



Acanthidium pusillum, Lowe, Proc. Zool. Sac. 1839, p. 91, or Trans. 



Zool. Soc. iii. p. 19. 

 Spinax hillianua, Poei/, Mem. Cub. ii. p. 340 ; Repcrt. Fis.-nat. Cuba, 



18G8, p. 454. 



Scales very small, each with a minute tubercle, without any 

 spines. The first dorsal fin much shorter than the second, midway 

 between the second dorsal spine and the eye. Brown or black. A 

 whitish band of demarcation sometimes separates the darker colora- 

 tion of the lower parts from that of the upper. 



Madeira ; Cuba. 



a, b, c, d, e-f, g-i, k-m. Adult examples (12 inches long). Madeira. 

 Among them the typical examples. 



This species has been confounded by Miiller and Henle with Sp. 

 niger. 



32. CENTROSCYLLIUM. 

 Centroscyllium, Miill. ^ Henle. 

 Two dorsal fins, each with a strong spine : no anal fin. Mouth 

 crescent-shaped; a straight oblique groove at each angle of the 

 mouth. Teeth equal in both jaws, very small, tricuspid. No 

 membrana nictitans. Spiracles of moderate width. Gill-openings 

 rather narrow. 



Greenland. , « i. n- r v • •• 



1. Centroscyllium fabricu. 



Spinax fabricii, lieinhardt, Dansk. Vid. Selsk. Fork. 1828, iii. p. xvi. 

 Centroscyllium fabricii, Miill. ^ Henle, p. 191 ; Dumeril, EUmnobr. 

 p. 449. 



Minute stellate ossifications cover the whole body. Dorsal fins 

 short, spines strong. Hoot of the ventrals entirely in front of the 

 second dorsal. Brown. 



Greenland. 



a. Stuffed : 29 inches long. 



33. SCYMNUS. 



Scymnus, sp., Cuv. Reyne An. ; Bfidl. ^ Heide. 

 •Two short dorsal fins, without spine, the fii'st at a considerable 

 distance from the ventrals ; no anal fin. Skin uniformly covered 

 with minute scales. Mouth transverse, a deep straight groove at 

 each angle of the mouth. Nostrils at the extremity of the snout. 

 Upper teeth small, pointed ; lower much larger, dilated, erect, tri- 

 angular, not very numerous. No membrana nictitans. Spiracles 

 wide. Gill-openings narrow. 

 Mediterranean and Atlantic. 



1. Scymnus lichia. 



Liche oil Gatte, Brouss. Mem. Ac. Sc. 1780, p. (377; Buham. Fcsch. 

 iii. p. 328. 



