322 ON THE SYNONYMY OP HELIX (HADRA) GULOSA, GOULD. 



Pfeifter, in the Nomenclator Heliceorum Viventium in 1881 

 drops the specific name gulosa as synonymic with Lessoni from 

 Port Curtis and reinstates the species under the sub-generic title 

 Bxdistes. Paetel, in his Catalog der Conchy lien-Sammlung, 1889, 

 makes //. gulosa synonymic with Lessoni, Pfr. The latest 

 published account of this species in question is that by Mr. H. A. 

 Pilsbry, in Tryon's Manual Conchology (second series Pulmonata, 

 vol. vi., 1890), where this author evidently is inclined to regard //. 

 coriaria, H. Scotti, H. monacha, and //. morosa as merely varietal 

 forms of the original H. gulosa, Gould. 



In the following paper I have enumerated a complete synonymy 

 of H. gulosa, Gould ; and from the examination of a very large 

 number of specimens, both living and dead, I cannot hesitate to 

 confirm Pilsbry's surmise that //. coriaria, H. Scotti, H. monacha, 

 II. morosa are undoubtedly identical with //. gulosa, Gould. It 

 is some years since I came to the conclusion that Dr. Cox's 

 species, Mastersi and Scotti, were not good species. According to 

 Drayton, as mentioned by Gould (U. S. Exploring Expedition, 

 vol. xn. p. 65, 1852), the living animal does not glide from place 

 to place as other Helices, but proceeds by flexing the foot in an 

 undulating manner, and on this account Gould, in 1862, bestowed 

 upon the species the sub-generic name Badistes. Having 

 examined many hundreds of living specimens, both in their 

 natural haunts and in confinement, I am compelled to contradict 

 the statement that this mollusc " flexes the foot ;" it moves in 

 the ordinary gliding manner. I find that I made a marginal note 

 to this effect in 1879 in a copy of Gould's Otia Conchologica, 

 kindly presented to me by my valued friend and correspondent, 

 Mr. John Howland Thomson, C.M.Z.S., New Bedford, U.S.A. 

 Consequently, as pointed out by me to my young friend, Mr. 

 Chas. Hedley, who has lately commenced to write upon the 

 Australian Land Mollusca, and is about to publish an account of 

 the anatomy of this species, the sub-genus Badistes has been 

 created under an erroneous impression, and in my opinion //. 

 gulosa, Gould, is attributable to the old sub-genus Hadra, as 

 placed by Pilsbry. I have seen specimens of this species exhibited 



