NO. 1324. ELASMOBRANCHIA TE FISHES— JORDAN A ND FO WLER. 655 



second dorsal and caudal separated by a notch; anu-lc of pectoral 

 obtuse; ventrals small. 



Color in spirits brown, more or less finely mottled with lighter, and 

 lower surface like upper; pores l)elow blackish. 



Length 44 inches. 



Type No. 7138, Ichthyolog-ical collections, Leland Stant'ordJunior 

 University Museum. Locality, Matsushima Hay. 



Cotypes are in U. S. National Museum, from station No. HT70, 

 Matsushima, where they were dredged by the V. S. Fish Connni.-^sion 

 steamer A/hafross. 



The type is a young female, but is easily distinguished from other 

 species by the elongate snout, which is, however, not so long as that 

 of the adult; distance between eyes le.ss than their distance from the 

 margin of the disk; a pair of stout spines in front of each eye, a single 

 one behind each, and a single one on the middle of the back, in front; 

 middle of the tail with a single row above, and all the rest of the body, 

 both above and below, smooth. Color more or less deeper brown 

 above, marbled with darker; below, brownish; the pores on the under 

 surface of the head, bordered with blackish. Length S^ inches. 



Coasts of Japan, especially northward; rather common. Tt was 

 obtained at Aomori, Hakodate, and Matsushima. 



(Named from Tengii or Tegu^ in Japanese mythology, a comical 

 being with a very long nose, which he is fai)led to thrust into the 1)usi- 

 ness of other people.) 



Family XIX. NARCOBATID^. 



ELECTRIC RAY8. 



Trunk broad and thick, covered with perfectly smooth skin. Tail 

 comparatively short and thick, with rayed caudal fin, and commonly 

 2 rayed dorsal fins, the first of which is over or behind the ventrals; a 

 longitudinal fold on each side of the tail; anterior or nasal valves con- 

 fluent into a quadrangular lobe; a large electric organ, composed of 

 many hexagonal tubes between the pectoral fins and the head. Ravs of 

 moderate or large size, noted for their power of giving electric shocks; 

 found in most warm seas. According to Fritsch the torpedoes pass 

 through three distinct phases of development — a shark-like, a ray-like, 

 and finally a torpedo-like stage. The very young have long, external 

 gills. 



II. Dorsal till single; spiracles close behind eye; tail with a fold on each side. 



Axtntpe, ;\S. 

 38. ASTRAPE Muller and Henle. 



Afitr ape MuLLEiiiind Henle, I'lagiostoinen, 183S, p. 130 (r<i/)eii!<l.s). 

 Dorsal fin single. Disk rounded, not cmarginate in front; snout 

 short, not keeled; spiracles with entire edges, near the eyes; mouth 

 narrow, protractile, surrounded l)y a circular fold of skin, joined to the 



