AMERICAN NATURAL HISTORY. 41 



White (A.)- Note on Hymenoptera in Arctic North America. 



List of insects taken by Sir John Richardson, and John 

 Rea, Esq., in Arctic North America. — Richardson s Arct. 

 Search. Exped. II. 1851. Appendix, 354. 8vo. (199 



Numerous species are recorded as being new; but specific names 

 are not provided for. 



White (A.). Descriptions of some apparently new species of Longi- 

 corn Coleoptera in the collection of the British Museum. — 

 Ann. and Mag. Nat. Hist. VII. 1851, 170. (200 

 Nov. sp. Amer. 



Callocomus morosus. Bolivia. 

 Calloctenus (n. g. ) pulcher. Venezuela. 

 Prionacalus atys. Peru. 



cacicus. Mexico. 

 Pyrodes Smithianus. Mexico, 

 tenuicornis. " 



CRUSTACEANS. 



Agassiz (L.). On the structure of the mouth in Crustacea, — Proc. 



Amer. Assoc. Adv. Sc. IV. 1851, 122. (201 



Dana (James D.). On the markings of the Icarapax of crabs. — 

 Amer. Journ. of Sc. XI. 1851, 95. w . (202 



Dana (James D.). On a new genus of Crustacea in the collections 

 of the Exploring Expedition, under Capt. C. Wilkes, U. S. 

 N. — Amer. Journ. of Sc. XL 1851, 223. (203 

 Nov. gen. Tetralia. 



Dana (James D.). On the classification ofiCCancroidea. — Amer. 



Journ. of Sc. XII. 1851, 121. (204 



Nov. gen. 



Actaeodes. Carupa. Pilodius. 



Actumnus. Euxanthus. Pseudoxius, 



Araneus. Liomera. Quadrella 



Carpilodes. Medaeus, 



