244 AMERICAN JOURNAL 



Helix Jervisensis is probably a local variety of H. Grayi, and 

 H. Icesa and 3Iastersi are intermediate between, and varieties of 

 Jervisensis and Grayi. 



Helix ptychomphala, Pfr. Reeve's figure, Conch. Icon., sp. 

 76, does not represent this shell. 



Helix capillacea, Fer. = probably H. hrevipila. 



Bulimus trilineatus, Quoy. Reeve's figures 310 and 397, 

 Conch. Icon. " I would suggest that this (fig. 397) be changed 

 to Quoyi ; but are they not the same species, and both, as 

 Pfeiffer suggests, only varieties of B. Kingii oi G;xa,jV' The 

 name Quoyi has already been used by Pfeiffer. 



Contributions to a Natural History of the Teredidae. By Prof. E. 

 Percival Wright. (Linnean Transactions. Loudon. Vol. 25.) 



Prof. Wright suggests that probably I was premature in mak- 

 ing a subfamily Kuphina3 for Teredae "without valves, clavately 

 cylindrical, sunk horizontally in sand, never penetrating timber, 

 because Dr. J. E. Gray supposes that two large alcoholic speci- 

 mens received by him, with pallettes resembling those of Kuplms 

 and valves attached, but without tubes, are probably the K. 

 arenarius." The question must still remain unsettled. If I 

 generalized on insufficient data, the evidence to the contrary of 

 my conclusion as to the non-existence of valves is still less 

 satisfactory. 



Mr. Wright believes Teredo Furcelloides (even Dr. Gray hes- 

 itates to assert positively that his alcoholic specimens are Kupltce 

 = Furcella,) Gray = and is a synonym of Calobates tJioracites, 

 Gould. 



The following new species are published and illustrated : 

 Calobates Australis, Western Australia, 



I can discover no distinctive characters to separate this from 

 C thoracites. 



Kuphus? Blanni, Singapore. (= Calobates t) 

 Nausitoria Saulii, Australia. 



The genus Nausitoria was instituted by Dr. Wright, (Linn. 

 Trans. Vol. 24, 1864,) for a curious fresh water Teredo from 

 Comer River, a branch of the Ganges, British India. The generic 

 characters were founded on the non-development of the auricle 

 of the valves. In a review of Dr. Wright's paper (Am. Jour. 

 Conch. II., 165) I doubted whether this would prove to be a 

 permanent character, as only two specimens were examined, 

 and I had frequently seen valves of Teredos with the auricle not 

 developed. In describing the second species, tvhich has slightly 

 developed auricles, Dr. W. modifies his generic characters and 



