1901.] NATURAL SCIEXCES OF PIIII^JiUELPHIA. 335 



filaments are adnate to the iuter-bi-aucliial septa for their greater 

 portion, only free proximally. The spiracle aperture is anterior 

 and superior to the first gill-opening, and it is furnished with small 

 pseudobranchire. 



CEioj)hagus. — Short and constricted, with wrinkled walls. 



Stomach. — Sac-like, moderately bulky, and the walls somewhat 

 plicate, especially in the lower cardiac region. 



Intestine. — Short duodenum which is simple. Colon spacious 

 and with a spiral valve. The rectum a short simple tube merging 

 finally into a cloaca. A rectal gland is developed which is con- 

 fluent with the rectum. 



Liver. — Large and trilobed. The median and left lobes are 

 proi^erly two divisions of the left lobe. Gall-bladder well 

 developed. 



Sjileen. — Kather large. 



Pancreas. — Present. 



This sjDecies preys upon small fishes, as remains of small Tele- 

 osts, one three inches or more iu length were taken from the gullet. 



11. Eaja radula De la Roche. 



Eaja radula De la Eoche, Ann. Mus. Hist. Nat., Paris, XIII, 1809, 

 p. 321. 



No. 389. Bails Bonaparte, Cat. Meted. Pesc. Euro})., 1846, p. 



12. Italy. Bonaparte Coli. (No. 233). Dr. T. B. Wilson. 



12. Raja circularis (Conch). 



Raia Circularis Couch, Cornish Fauna, Part I, 1838, p. 53 ; pre- 

 liminary description in Loudon's Magazine of Natural History, 

 Ciiarlesworth, New Series, Vol. II, 1838, p. 71 (with fig.). 



No. 406. Type of Raja falsavela Bonaparte, Fauna Italica, 

 Pesci, Tomo III, xxvi, 1839, 136, PI. 148, fig. I. Italy. Bona- 

 parte Coll. (No. 221), Dr. T. B. Wilson. 



This specimen is almost dissolved and I identify it only from the 

 original label which is certainly referable to this species. 



13. Raja oxyrinchus Linnaus. 



liaia Oxyrinclius Linnaeus, Syst. Nat., Ed. X, 1758, p. 231. 



Nos. 523 to 527. Laeviraja Bonaparte, Fauna Italica, Pesci, 

 Tomo III, XXV, 1839, 130, PI. 151, fig. 2. Italy. Bouai)arte 

 Coll. (No. 226). Dr. T. B. Wilson. 



