336 PROCEEDINGS OF THE ACADEMY OF [May, 



14. Raja stellulata (Jordan and Gilbert). 



Rata stellulata Jordan and Gilbert, Proc. U. S. Nat. Mus., 1880, p. 

 133. 



No. 414. Typical of Raia stellulata Jordan aud Gilbert. 

 Monterey. From the U. S. Fish Comm. (No. 26,975). 



This species was described from eight examples, of which this 

 is one, and were at that time said to have been in the U. S. Nat. 

 Mus. 



15. Psammobatis brevicaudatus Cope. 



Fsammobaiis brevicaudatus Cope, Proc. Amer. Philos. See, XVII. 

 1877, p. 48. 



No. 21,261. Type of Psammobatis brevicaudatus Cope. Bay 



of Pecasmayo, Peru. Coll. of Prof. James Orton. Prof. E. D. 



Cope. 



NARCOBATID.^. 



16. Tetronaroe nobiliana (Bonaparte). 



Torpedo nohiliana Bonaparte, Fauna Italica, Pesci, Torno III, xii. 

 Ib35, 63, PI. 154 (two figures). 



Nos. 426 to 440, 461 to 470, and 16,948. Types of Torpedo 

 nobiliana Bonaparte. Italy. Bonapaite Coll. (Nos. 234 and 

 15). Dr. T. B. Wilson. 



In these specimens the first D. is inserted almost over the poste- 

 rior edge of the V. 



Mouth. — Moderate, though not particularly spacious. Teeth 

 only upon the jaws. Tongue absent. Buccal flaps both entire, of 

 rather even width, and not papillose or fringed. Inside of the 

 mouth smooth and entirely destitute of shagreen. 



Pharynx. — Elongate and spacious and with apparently smooth 

 integument, except upon the inner surfaces of the branchial arches 

 which are asperous with fine shagreen. Gill-openings 5, the 

 median the largest, the second and fourth next in size, and the first 

 and fifth the smallest, and about equal. The gill-openings open 

 into 5 gill- pouches, which also communicate externally by 5 gill- 

 slits. The gill-pouches are separated from each other by the inter- 

 branchial septa, and each one contains a continuous complement of 

 gill-filaments, except the last, which has only its anterior half fur- 

 nislied. The gill-filaments are joined for most of their length to the 

 walls of the inter-branchial septa, though their distal extremity is 

 free for a short distance. Spiracle aperture anterior and superior 



