422 SPINACIDJE. 



of the base of the first (without the spine) is less than one-third of 

 the distance between the two fins. Extremit)- of the ventral below 

 the end of the second dorsal. Scales pedunculate, with five or six 

 ribs each. Blackish brown, spotted with darker. 



Coast of Portugal ; Madeira. 

 a. Fine female specimen, 31 inches long. Madeira. Presented by 

 J. Y. Johnson, Esq. 



4. Centrophonis squamosus. 



L'Ecailleiix, Srouss. 3Iem. Ac. S'c. 1780, p. 675 ; LacSp. i. p. 284. 

 Squalus squamosus, Gm. L. i. p. 1502 ; lil. Schn. p. 156. 

 Acanthorhiuus squamosus, Ulainv. Notiv. Bull. Sc. 1816, p. 121. 

 Centropliorus squamosus, Miill. S)- Ilenle, p. 90, pi. 34; Doccn/e, Proc. 



Zool. Soc. 1864, p. 260 ; Dumeril, Elasmohr. p. 448 ; Bocaije ^- Ca- 



pello, Peix. Plagiost. p. 27, with figs, of scales. 



The labial fold extends a little way along the margin of the upper 

 jaw, but not along that of the lower. Teeth |4, the upper inclined 

 outwards, with a notch on the outer side of the base, but not on the 

 inner; no median tooth in the lower jaw. The distance between the 

 nostrils is about one-third of the length of the praeoral portion of 

 the snout. Lower angle of the pectoral fin very slightly produced. 

 The length of the base of the second dorsal fin (without the spine) is 

 two-thirds that of the first (without the spine) : and the length of 

 the base of the first (without the spine) is about one-third of the 

 distance between the two fins. Extremity of the ventral fins below 

 the middle of the second dorsal fin. The scales are leaf-shaped, with 

 a stronrj mediein keel, quite free, inserted in the shin hy a short stalh. 

 Brown. 



Coast of Portugal. 



5. Centrophorus dumerilii. 



Machephilus dumerilii, Johnson, Proc. Zool. Soc. 1867, p. 713. 



Most closely allied to C. squamosus. The labial fold extends a 

 little waj- along the margin of the iipper jaw, but not along that of 

 the lower. Teeth 4^, the upper small, straight, triangular, with a 

 constricted cusp standing on a broad base ; a median tooth in the 

 loiver jaw. The distance between the nostrils is a little less than 

 one-third of the length of the praoral portion of the snout. Lower 

 angle of the pectoral fin veiy slightly produced. The length of the 

 base of the second dorsal fin (without the spine) is two-thirds of 

 that of the first (without the spine) ; and the length of the base of 

 the first (without the spine) is nearly one-half of the distance be- 

 tween the two fins. Extremity of the ventral fins below the middle 

 of the second dorsal fin. The scales are leaf-shaped, with a strong 

 median heel, quite free, inserted in the shin by a short stcdh. Brown, 

 with dark spots. 



Madeira. 



a. Type of the species, male, 43 inches long. Prf^sented by J. Y. 

 Johnson, Esq. 



