452 rORPKDlKID^. 



6. NARCINE*. 

 Narcine, Henle. 

 This geuus differs from I'orpedo in having the spiracles ahuost 

 immediately behind tlie oyo. The teeth are almost flat, sometimes 

 with a median point, which, however, does not project. Tail longer 

 than the disk. 



Tropical and subtropical seas. 



1 Narcine tasmaniensis. 



Richards. Proc. Zool. Soc. 1841, p. 22, and Trcm'i. Zool. Soc. iii. p. 178, 

 pi. 11. tig. 2. 

 Outline of the disk elliptical. Spiracle at a short distance behind 

 the eye, without tubercles on the margin. The first dorsal not 

 larger than the second. Hind margin of the candal obliijuely 

 rounded, passing into the lower margin. 

 Tasmania. 



fl. Type of the species. Presented by Sir J. Riclxardson. 



2. Narcine timlei. 



Raja timlei, Bl. ScJm. p. 359. 



Narcine timlei, Henle. Narcin. p. 84, pi. 2. fig. 1 ; Miill. 8^- Henle, 



p. 1.30 ; iJumeril, Rev. Zool. 18-52, p. 273, or Elasmobr. p. 519 ; 



Jileek. Xat. Tijds. Ned. Ind. iv. 1853, p. 512 ; Kner, Novara, Finch. 



p. 417. 

 indica, Henle, Narcin. p. 35, pi. 2. fig. 2 ; Midi. 8; Henle, t^s. 1.30; 



Dumeril, II. cc. : Cantor, Mai. Fish. p. 417. 



microphthalnia, Dumeril, Rev. Zool. 1852, p. 275.. 



macrura, Jhmieril, I. c. p. 277. 



maculata, Dumeril, I. c. p. 274, and Elasmobr. p. 518. 



Outline of the disk nearly circular. Spiracle immediately behind 

 the eye, without tubercles on the margin. The first dorsal not 

 larger than the second ; hinder margin of the caudal confluent with 

 the lower, rounded. 



East Indies ; Japan. 



a. Adult: skin. Pinang. From Dr. Cantor's Collection. 



h. Half-grown. From the Collection of the Zoological Society. 



3. Narcine lingnla. 

 Richardson, Ichth. Chin. p. 109. 



Outline of the disk nearly circular. Spiracle immediately behind 

 the eye, without tubercles on the margin. The first dorsal not 

 larger than the second. Hinder margin of the caudal vertical, trun- 

 cate, perfectly distinct from the lower margin. 



China. 



a~b. Male and female. China. Presented by Sir J. Richardson. 



* 1. Torpedo californica, Ayres, Proc. Calif. Ac. Nat. Sc. i. 185.5, p. 70; Nar- 

 cine californit-a, Girard, U. S. Pac. R.R. Exped. Fish. p. 371. — San 

 Fran pi SPG. 



