NATURAL SCIENCES OF PHILADELPHIA. 197 



141. Habpiprion cayennensis, (Gmelin). 



Tantalus cayennensis, Gm. Syst. Nat. i. p. 652, (1788). 

 Buffon. PI. Enl. 820. 

 From the River Nercua. 



'In the mountains, before reaching the main ridge on the Rio Nercua." 

 (Mr. W. S. Wood, Jr.) 



142. Dendrocygna autumnalis, (Linnaeus ) 



Anas autumnalis, Linn. Syst. Nat. i. p. 205, (1766). 

 Baird, B. of N. Am. pi. 63. Rept. Mex. Bound. Surv. Birds, pi. 25. 

 From the River Truando. 



143. Carbo brasilianus, (Gmelin) ? 



Procellaria brasiliana, Gm. Syst. Nat. i. p. 564 ? 

 Gillis, Astr. Exp. Birds, pi. 28 ? 

 From the River Truando. 



i: On the Truando and Atrato, frequently seen in the water and also on trees. 

 When perched, drop very suddenly into the water on being alarmed, and dis- 

 appear by diving." (Mr. W. S. Wood, Jr.) 



144. Plotcs anhinga, Linnaeus. 



Plotus anhinga, Linn. Syst. Nat. i. p. 580, {1766). 

 Plotus melanogaster, Wilson. 

 Wilson, Am. Orn. ix. pi. 74. Aud. B. of Am. pi. 316, Oct. ed. vi. pi. 420. 

 From the Rivers Atrato and Truando. 



Several specimens in immature plumage, but all apparently of this species. 

 "Abundant in the months of January, February and March, on all the rivers 

 from the Gulf of Darien, on the Atlantic, to the coast of the Pacific." (Mr W 

 S. Wood, Jr.) 



Descriptions of some new species of Cretaceous Fossils from South America, 

 in the Collection of the Academy. 



BY W. M. GABB. 



Eulima s e m i n o s a , pi. 3, fig. 6. Shell fusiform, spire elevated, whorls 

 five, mouth small, shell thick and marked by irregular lines of growth. 



From a greyish brown limestone from Chili, in connection with Tri^onia 

 Hanetiana Z>' Orb . , and many of the other species described by that author 

 in the "Voyage de 1' Astrolabe et Zelee." 



Scalaria (Clathrus) C h i 1 i e n s e , pi, 3, fig. 4. Shell fscalariform, spire 

 very elevated, whorls six or seven, rounded and marked by about fourteen 

 prominent, longitudinal, rounded ribs. Mouth small, subcircular; a reflec- 

 tion of the inner lip covers the base of the body whorl so as to hide the lower 

 part of some of the ribs. 



Pugnellus t u m i d u s, pi. 3, fig. 13 and 14. Shell heavy, scalariform, spire ele- 

 vated, five whorls, which are angular at the upper part, and marked by a series 

 of small nodes on the angle ; body whorl large, mouth expanded, superior 

 sinus very deep, outer lip very much thickened, especially the extreme outer 

 portion or callosity, which is nearly as thick as long. The thickening of the 

 superior and lateral edges of the outer lip, produces a deep fosset on the poste- 

 rior portion of the body whorl, immediately behind the expansion of the lip 

 the inner lip is reflected over a portion of the spire ; canal long and curved 

 anteriorly. 



This species is the one to which Mr. Conrad, in his note on the genus refer* 

 I860.] 



