30 PROCEEDINGS OP THE ACADEMY OP 



Gasteropoda. 



Pleurotomaria humerosa, Meek and Hayden. Proceed. Acad. Nat. Sci., Phila. 

 Dec, 1858. la upper coal measures, at Grasshopper creek. 



Pleurotomaria subturbinata, Meek and Hayden. Proceed. Acad. Nat. Sci., Phila. 

 Dec, 1858, p. 264. Locality and position same as last. In the Proceedings of 

 the Academy above cited, the locality of this species is erroneously given as at 

 Helena. 



Bellerophon -? We found a small undetermined species of this genus in divi- 

 sion 10. Oa Smoky Hill river and near Cottonwood creek; also casts of a large 

 species at Leavenworth landing and Grasshopper creek, in the upper coal 

 measures. 



Euomphalus ? The species here alluded to, was found in No. 11 and 37 of 



the foregoing general section. Either it or a very closely allied species, also 

 ranges far below this, in the upper coal measures. It is nearly related to, if not 

 identical with a species Prof. Hall has described in the Iowa Report, under the 

 name of E. rugosus. 



Cephalapoda. 

 Nautilus cccentricus, Meek and Hayden. Trans. Albany Inst., vol. iv., March 

 2d, 1858. Smoky Hill river, division No. 10. 



Fishes. 



Xystr acanthus arcuaius, Leidy. Upper carboniferous rocks af, Leavenworth 

 landing. 



Cladodus occidentalism Leidy. Division No. 37 of foregoing general section. 

 At Manhattan. 



Peialodus Allegh vnien&is, Leidy. Jour. Acad. Nat. Sci. vo!. iii. p. 161. Divi- 

 sion No. 10, of foregoing general section. Fort Riley. 



Catalogue of Birds collected on the Rivers Camma and Ogobai, Western Africa, 

 by Mr. P. B. Duchaillu in 1858, with notes and descriptions of new species. 



BY JOHN CASSIN. 



The collection made by Mr. Duchaillu on the River Camma or Fernando Vaz 

 and its tributaries, the Ogobai, Rembo, and Ovenga rivers, is the most exten- 

 sive and interesting yet made by him, or ever yet received from Western Africa, 

 in the Museum of this Academy. The two last names of rivers I have not used 

 in the localities given in the succeeding catalogue, mainly because I have not 

 succeeded in finding them in any geographical work to which I have access, 

 but now state that these names occur in Mr. Duchaillu's letters, and that they 

 appear to be tributaries to the River Camma. Much valuable information will 

 undoubtedly be added to the geography of this part of Western Africa by Mr. 

 Duchaillu. 



As in former collections, Mr. Duchaillu has not sent birds of which numerous 

 specimens had already been sent in former collections. This fact will account 

 for the absence of the names of some well known species from the present cata- 

 logue. 



1. Gypohierax angolensis, (Gmelin.) 



Falco angolensis, Gm. Syst. Nat. i. p. 252 (1788.) 

 Polyborus hypoleucus, Bennett. 

 Gray's Genera, i. pi. 4. Jard. and Selby, 111. N. S., pi. 13. 

 From the Camma and Ogobai. Young, with plumage entirely dull ashy 

 brown, the head only becoming spotted with white. This is the only vulture 

 received from Mr. Duchaillu, and has come in all his collections. 



2. Polyboroides typicus, Smith. 



Polyboroides typicus, A. Smith, 111. Zool. S. Afr. Birds. 

 " Polyboroides radiatus, (Scopoli,)" Auct. 

 Smith, 111. S. Afr. Birds, pi. 81, 82. 



[Jan. 



