(•KSTR.VrTONTID.V.. 41 5 



Fam. (). CESTRACIONTIDyE. 



Characters of iho single f^-enus. 



27. CESTRACION. 



(I'stracion, Ciiv. (iKit Klein). 

 I lutcvodoutiis, lildiitrillc. 



Jletcrodoiilus, Tropidodiis et (!vr()])lcuro(Uis, (111!, Pn.c. Ac. Nat. Sr. 

 PhilMd. 1S(;2, p. 480. 



Two dorsal fins, Avith s])inos, the first, opposite to flic s])aee lie- 

 twcen the pectorals and ventrals ; the second in advance of llie anal. 

 Nostrils and Iniccp.l cavity confluent. Month rather narrow, tlic 

 upper lip divided into sc>ven lobes, the lower witli a fold. Spiracles 

 small, beh)W the posterior part of the eye. (lill-openin.gs ratlier 

 narrow. Dentition similar in both jaws, viz. small obtuse teeth in 

 fi-ont, which in young individuals arc pointed and ])rovid('d Avilh 

 from three to five cusps. Tlic lateral teeth large, pad-lilce, twice a-; 

 broad as. long, arranged in obliijue series, one scries being f(n-m(d bv 

 much larger teeth than those in the x)lher series. 



Pacific and East-Indian archipelago. 



1. Cestracion pMlippi. 



Port .Tackson Sliarlc, Phi//ij), Vu>/. L'ofa/n/ Baij, p. 283, c. Iig. 



Squale pliilipp, L(ir'''p. i. p. 218. 



Sqnaliis pliillip]ii, lU. ScJiii. p. 1.34. 



Cestracion philliiii, (,'itr. J'ir/in- /\iiiii)\ LrM. Voi/. ('<:(/. Zed. ii. p. 07, 



I'ot'sx. pi. 2 ; A/iill. iV Ilriifc, p. 7<>, pi. •>! ; 6V7//r//. Fitini. .hijion. 



I'oixx. p. 304 ; ki'triiver, Nov. Act. Acad. CaroL Leopold. Noi. Cur. 



xxiii. 1804. 

 Iletcrodontus phillipi, lUalnv. Konv. Hull. >SV. 1810, p. 121 ; Grn]i, 



Catcd. Cltondropt. p. G-^) ; Duutcril, Elasinohr. p. 424. 

 Cestracion zebra, Onn/, Zool. Mi.fc. p. o; RicJiariU. Ichth. Chin. p. 10;"). 

 IlL'terodontus zebra, (irni/, C]i(iiidr<tpt, p. (54 ; lllccl;. Vcrh. Ihit. (xoi. 



xxvi. XicH. Nalcz. Japan, p. 127, and Act. tSoc. Sc. Nccvl. i. Ani- 



ho>/)ia, Y 71. 

 Teotli : A(/ass. I'oiss. Pus.s. in. \)\. 1). ilgs. 11-19; Chvm, Odontoi/r. 



pi. 10. lig. ], pi. 11. tig. 2 ; and Odcol. Crdal. i. p. 90. 



Anal fin terminating at a considerable distance from the root of the 

 caudal. Origin of the first dorsal immediately behind the root of the 

 .pectorals ; supraorbital ridges low, gradually disappearing on the side 

 of the occiput, liody with more or less distinct dark cross bands, the 

 first of which crosses the interorbital space and the orbit. Sometimes 

 the bands are more numerous, narrower, and more distinct (zchra). 



Vertebra'. 110: viz. 14 between the skull and the first dorsal 

 spine, '3!2 between the two dorsal s])iues, and (54 in the remaining part 

 of the vertebral column. 



From New Zealand to Australia, the East-Indian archipelago, and 

 Japan. 



