176 Account of Pelagian Shells. [March, 



passed at too great a distance from the vessel to have fallen into the 

 line of the tow-nets. 



Gasteropoda. 



1. Janthina, 6 species. 



2. Litiopa (Rang.), 2 species. 



3. 4. Two new genera, which I have not yet sufficiently examined. 



5. Carinaria, 2 new species. 



6. Atlanta (Lesueur), 2 species. 



7. Oxy gyrus, mihi, 1 species. 



Pteropoda. 



8. Limacina. A single new reversed species, being the second 

 discovered of the genus, hitherto confined to Arctic regions. I took 

 an unique specimen in Lat. 40° S. Long. 33° E. 



9. HyalcBa, 9 species. 



10. Cleodora, 3 species. 



11. A. new perforate genus allied to Cleodora (rarissimum) . 



12. Crests, (Rang, Manuel des Mollusques, page 115,) 3 species. 



12. Cuvieria, (Rang.) 2 species. Our capture of two perfect spe- 

 cimens of this shell will enable me to correct the character given by 

 Rang, from imperfect specimens. Out of the number caught by us we 

 took only two perfect specimens, one of which I unfortunately broke, 

 its excessive fragility reducing it to the state in which Rang has de- 

 scribed it. 



Cephalopoda. 



14. Argonauta, 1 new species. 



15. Spirula Peronii. 



Cirrhipedes. 



16. Anatifera, 2 species. 



Tacerta Sedis. 



17. Campylonaus (mihi). A new genus, which I am unable to as- 

 sign to any known class or order, from the three specimens taken by 

 Lieut. McNair being defective of the animal. I can only conjecture that 

 it may belong to the Firolidce, and that it is probably related to Cari- 

 naria. 



It only remains to give the specific character of Oxygyrus. 



0. inflatus. Testa tumida, anfractibus transverse conjertim striola- 

 tis ; suturis profunde excavatis. 



Shell tumid, whorls transversely and closely striate ; sutures deep- 

 ly cut. 



Calcutta, Feb. 2lst, 1835. 



