12 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



sliglitly beyond skin. First dorsal nuich shorter tlian second ; lengtli of l)ase (withont spine) 

 aliout onel'ourtli of its distance from tlie second dorsal. Extremity of ventral tins behind 

 end of the second dorsal. Scales pedunculate, each with three strong ribs, terminating in 

 a i)oiut. Uniform brownish black. (Modified from Giinthcr.) 



CENTROPHORUS,(Muner and Henle), Bocage and Capello. 



Centropnorits, MOlleu and Hexlk (part).— GOntoeu (part), Cat. Fish. Brit. Mns., vm, 410. 

 Cenirophonis (restricted), BoCAGE and Capello, Proc. Zoiil. Soc, 1804, p. 203 [typt' i'iniroplii,rii>i ijranulosKn 

 (Sehii.), M. aiulH.]. 



Spinacoid sharks, with two dorsal fins, each with a si)ine, which is sometimes hidden 

 under the skin; no anal fin. Trunk elongate, without lateral folds. Mouth wide, but 

 slightly arched; a long, deep, straight, oblique groove on each side of the mouth. Teeth 

 of the lower jaw with the point more or less inclined backward or outward. TT])per teeth 

 erect, triangular, or narrow lanceolate, witli a single cus^). No membrana nictitans. yjiira- 

 cles wide, behind the eye. Gill openings narrow. (Gunther.) 



CcntrophoruH has not yet been taken in the western Atlantic, although six s])ccies have 

 been found in the iMediterranean and tlie neighboring parts of the ocean, viz: 



1. CviitnqjIioniK i/rtiuuhxiis (Sciix.), M. and H. Mediterranean and Madeira. 



2. Cciiti-ophorus limilaniciis, JSocAGE and Capello. Oft' Portnfjal. 



3. Cciilrophoriis crcpidaler, Bocage and Capello. Oft" Portnt;al, Madi^ira. 



4. Conirophorus squamosus (Gmelin), M. and H. Off Portugal. 



5. Centrophortts Dummlii, Johnson. Madeira. 



6. Centrophoriis calcvits, Lowe. Madeira, oft" Portngal. 



The French expedition obtained C. n(jiirn)inlosits in considerable numbers atSetubal, as 

 well as two individuals of G. calcem. The Ghdllcnf/er did not obtain a single individual of 

 the genus irom the Atlantic, but took two undescribed forms, G. foliaceits, Giintlier, and 

 G. squamidosus, Giiuther, off Japan, "an additional proof," remarks Giiuther, "of the 

 extraordinary resemblance of the Japanese and Madeirau marine faunas." 



CENTROPHORUS GRANULOSUS, Mulleu and Henle. (Fignre 11.) 



Centrophorus yriiniilasM. MCller and Henle, Plagiost., 89, pi. 33. — Bocage and Capello, P. Z. S., 18G8, 

 260; Peix., Plagiost., 25 (partim). — Capello, Jora. Aead. Sci. Li.sl)oa, ii, 113 (partim); Cat. Peix. Port., 

 1880, 47.— GiJNTUER, Cat. vm, 420. 



The labial fold does not extend along the margin of the mouth. The distance between 

 the nostrils is rather more than one-third the length of the pra'oral portion of the snout. 

 The lower angle of the pectoral is produced into a. narrow lobe, longer in adult examples 

 than in immature. The length of the base of the second dorsal (without the spine) is two- 

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

 is one-third of tlie distance between the two fins. Extremity of tlie ventral fins l)elow the 

 second dorsal spine. Scales rather smooth in adult examples, without median keel, ribbed 

 in front. Young examples rough. Uniform brown ; young examples with the extremities 

 of the fins white. (Giinflier.) 



This form occurs in tlu^ Mediterranean ami the neighboring parts of the .Vtlantic. 

 The British Museum has a fietus, which has been provided with a name by Dr. Rleeker 

 (Gcntrophnrns ini>liiceeiisis, A(^t. Soc. Sc. Tndo-Neerl., A'TIT, Amboyna, Indies). Dr. (liinther 

 says that no distinctive characters can be given from a single undexcloped (•\ami)lc which 

 is not la good condition. 



CENTKOI'IIORUS LUSITANICUS, Bocagm and Capkm.o. 



Centroplioriia iKxilaiiicitii, I'rnr. Zoiil. Sue., 1.S01, 200, lig. 1. — Bocage and ("api:m,o. Apuiilanimfds Ichth. 

 do Porlngal, Peixea Plagiost., Lisbon. ISOO. 2S(). — (iixTiiEU. (at.. ^■|1I. 121. — Capei.i.o Cit. Peix. 

 Port., 1880. Coast of Portugal. 



Very similar to G. (/rdnulonus, Imt with base of the first dorsal lin mhhIi longer, etc. 



