332 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



no spine between dorsal and caudal; whole body and tail below 

 smooth, without pores. 



Dorsal terminal on long tail, distant from caudal space equal its 

 own base, small or about long as orbit; caudal 1% in interorbital ; 

 pectorals form nearly circular disk which long as tail, length li^ in 

 its own width; ventrals deeply notched, each separately attached to 

 lower side of tail. 



Uniform pale purplish gray above, below deep yellow. Length, 

 640 mm. (Waite.) 



New Zealand. 



Family TORPEDINIDAE 



Head and trunk smooth, depressed, partly circular disk. Tail 

 short, with lateral fold each side and base wide. Rostrum short, 

 more or less branching. Front orbital cartilages extended forward 

 to support disk edges. Front nasal valves reaching mouth, con- 

 fluent, somewhat free, as lip behind median attachment. Electric 

 organ of vertical cells, modified from ampullae, on each side of head 

 and separating pectoral. Gill openings small, between electric or- 

 gans and head. Spiracles present. Skin soft and naked. Lateral 

 line rudimentary, on lower side of disk as vesicles of Savi. Dorsals 

 two, one, or none. Caudal not lobed. 



ANALYSIS OF GENERA 



a^. ToRPEDiNiNAE. Two doi'sals. 

 b\ Tail long, 

 c*. Disk subcircular, medium ; tail with lateral folds ; ventrals distinct. 



d^. Nasal flap much broader than long Narcine 



d". Nasal flap only little broader than long Heteronarce 



c'. Disk elongate ; tail without lateral folds ; eyes obsolete Benthobatis 



J)\ Tail short. 



e\ Disk rather large, elongate ; ventrals united Hypnos 



e'. Disk rather large, broad, subcircular ; ventrals distinct Torpedo 



a'. Narkinab. One dorsal ; disk circular ; tail medium, with lateral folds ; 

 spiracles entire, close to eye. 



f. Ventrals distinct from pectorals; eyes distinct Narke 



f. Front part of ventrals modified for walking, hind part coalesced 



with disk; eyes rudimentary Typhlonarke 



a". Temerinae. No dorsal; disk subcircular, longer than tail Temera 



Genus NARCINE Henle 



Narcine Henle, tjber Narcine, p. 31, 1934. (Type, Torpedo hrasiliensis Olfers, as 



example by Bonaparte, Ann. Soc. Nat, Bologna, vol. 2, p. 204, 1838.) 

 Syrraxis (Jourdan) Bonaparte. Fauna Ital. Pesc, vol. 3, pt. 2, fasc. 13, 183.5; 



fasc. 30 (no pagination), 1841. (Type, Narcine indica Henle, montoypic.) 

 Cyclonarce Gill, Ann. Lyceum Nat. Hist., New York, vol. 7, p. 387, 1862 (Type, 



Raja timlei Schneider, virtually monotypic.) 

 Oonmarce Gill, Ann. Lyceum Nat. Hist., New York, vol. 7, p. 387, 1862 (Type, 



Narcme indica Henle, virtually monotypic.) 



