SPTNACIDJ?. 



417 



Fam. 7. SPINACID^E. 



Two dorsal fins; no anal. Mouth but slightly 

 arched ; a long, deep, straight oblique groove on each 

 side of the mouth. Spiracles present ; gill-openings 

 narrow. Pectoral fins not notched at their origin. 



28. CENTEINA. 



Centrina, Cuv. R^gne Anim. 

 Oxynotus, Rqfinesqtie. 



Two dorsal fins, each with a strong spine ; no anal fin. Trunk 

 rather elevated, trihedral, with a fold of the skin running along each 

 aide of the belly. Mouth narrow, with a deep groove on each side. 

 Teeth of the lower jaw erect, triangular, finely serrated ; those of 

 the upper slender, conical, forming a group in front of the jaw. 

 No inembrana nictitans. Spiracles wide, behind the eye. Gill- 

 openings narrow. 



Mediterranean and neighbouring parts of the Atlantic. 



1. Centrina salviani. 



Centrina, Rondel, p. 384 ; Salvian. p. 157 ; Gesner, De Aquat. p. 609; 



Aldrov. p. 401 ; WiUughbif, p. 58, tab. B 2 and B .3. 

 Vulpecula, Belhn. De Aquat. pp. 63, 64. 

 Galeus centrina, Gesner, De Aquat. p. 1046. 

 Squalus, sp. no. 5, Artedi, Symm. p. 95 ; Gen. p. 67. 

 Galeus, sp. no. 7, Klein, Misfi. iii. p. 10. 

 Squalus centrina, L, Syd. Nat. i. p. 398 ; Bl. Ansl. Fisch. i. p. 23, 



taf. 115; Bl. Schn. p. 26; Briinn. Pise. Mass. p. 3; Risso, Ichth. 



Nice, p. 42. 

 I^a Mielga, Cormde, p. 128. 

 Squale humantiu, Lacfp. i. p. 213, tab. 9. 

 Squalus (Acanthorhinus) centrina, Blainv. Faun, Fr. p. 61, tab. 15. 



Centrina salviani, Risso, Eur. Merid. iii. p. 135 ; Bonap. Faun. Ital. 



Pesc. ; Miill. §' Haile, p. 87 ; Bocage ^ Caj^ello, Peix. Plagiost. 



p. 32. 



humantin, Cloquet, Diet. Sc. Nat. vii. p. 385, pi. 31. 



Oxynotus centrina, (Rqjfinesque) Dumeril, Elasmohr. p. 444. 



A fold of the skin runs along the median line of the back for- 

 wards from the dorsal spine to the head, and is continued back- 

 wards to the second dor.^al fin. Scales spiny. Ventrals opposite to 

 the second dorsal. 



Mediterranean ; coasts of Portugal. 



a-h. Stuff'ed. 24 and 27 inches long. Gibraltar. 

 20. ACANTHIAS. 



Acanthias, sp., Risso, Eur. Merid. iii. p. 131. 

 Acanthifts, Midi. ^- Ilenle. 

 VOL. VIII. 2 E 



