164 AMERICAN JOURNAL 



On the structure of the eye in the Gasteropoda ; and on the 

 development of the eye in the Animal Series. By V. 

 Hensen. 



No. 2. February, 1868. 



Observations on the distribution of some species of Nudi- 

 branchiate Mollusca in the China Sea. By Dr. C. Col- 

 lingwood. 



On the occurrence of Diplommatina Huttonii and JEJnnea bi- 

 color in the West Indies. By Wm. T. Blanford. 



The author, reviewing the recent paper of Mr. Guppy on the 

 existence of these shells in the island of Trinidad, published in 

 the Annals (and noticed by us), arrives at a different conclusion 

 from the latter as to the method of their introduction. He be- 

 lieves them to have been introduced along with Indian seeds, — 

 probably by the Spanish or Portugese, — as many of the cultivated 

 plants of the West Indies are of Indian origin. 



No. 4. April, 1868. 



Habits of Volutes. By. Dr. J. E. Gray. 



" Volutes are rarely collected with their animals, except when 

 they are accidentally thrown ashore in a storm. They have 

 therefore been said to be animals which lived in the depths of the 

 sea. The reason they are not found is that, like the Naticce, 

 they bury themselves in the sand as soon as the water falls and 

 the sand is left dry by the tide ; they are only to be procured 

 by digging for them, or when the storm has been sufficient to 

 disturb the sand, and throw them on the beach. Mr. Cutter in- 

 forms me that he has walked for miles along a sandy beach in 

 Australia without finding a specimen ; but on talking to a fisher- 

 man about the shells, he told him the sand abounded with them, 

 and taking him back to the sand which he had traversed, on dig- 

 ging up a spot on the sands which was drier than the rest, as if 

 some one jiad trodden on it, the Volute was found ; and in this 

 way many were obtained in a living and beautiful state." 



Natural History Transactions of Northumberland and Durham. 

 Vol. 1, Part 1. Newcastle-upon-Tyne, 1865. 



Reports of Beep Sea Dredging on the Coasts of Northumber- 

 land and Durham, 1862-4. Edited by Geo. S. Brady. 

 (With Report on Mollusca by Joshua Alder.) 



Conc^ologia Iconica. By Lovell Reeve. Parts 268, 269. London, 1868. 

 TJnio (continued). Plates 61 — 68, inclusive. January, 1868. 



