68 THE NAUTILUS. 



resembling them is known, the position of tlie new genus is left un- 

 certain. It is curious that with the exception of a Carychium disr 

 covered by Dr. R. E. Call in Mammoth Cave, no cave-snails have 

 been found in America. Those having opportunities should search 

 in other caves of this country. 



PUBLICATIONS RECEIVED. 



MOLLUSCA OF THE " PoRCUPINK " EXPEDITIONS. By E. R. 



Sykes (Proc. Malac. Soc, London, VI, 1904). The material col- 

 lected by these dredging expeditions in the northeast Atlantic, etc., 

 was not wholly examined by Jeffreys, whose death interrupted the 

 work. Mr. Sykes is now supplementing his valuable reports, the 

 first paper dealing with the Tectibranchs. A number of new forms 

 ^re described, with* valuable information upon others. An excellent 

 plate illustrates several little-known species. 



A Ckitical List of the Sph.erospira Section of Ther- 



siTES By Hugh Fulton. (Journal of Malacology, XI. 1904.) 



With the specimens from the Cox and Beddome collections, Mr. 

 Fulton has critically revised this group of handsome Queensland 

 Helices, correcting numerous errors in former works, and naming as 

 new T. consors, a form figured as T. parsoni Cox in the Manual of 

 Conchology. It is only fair to say that most of the errors in former 

 works were due to wrongly named shells sent out by Cox and other 

 Australian conchologists. The work seems to be well done and will 

 be of value to collectors havinor these fine Australian snails. — H. A. P. 



An Historical and Systematic Review of the Frog- 

 Shells AND Tritons — By W. H. Dall. (Smithsonian Misc. 

 Coll., Vol. 47, 1904.) Perhaps no prominent gastropod family has 

 suffered such vicissitudes of nomenclature as the Tritons. Dr. Dall, 

 without going into their morphology to any length, has fundamentally 

 examined the nomenclature and taxonomy of the group from the 

 earliest times, and gives in this paper the results of an investigation 

 of the early literature of the groups, which may well be called ex- 

 haustive. In the Ranellida; he recognizes one genus. Bursa Bolten,, 



