164 Mr. H. C. Fulton on Stenopylls. 



Tate's figure, perliaps, ratlier exaggerates tlie prominence 

 of the spiral incised lines; they are only just discernible 

 under the microscope. The description makes no mention of 

 tlie internal spiral lamince. Specimens examined by me were 

 part of those collected by the Horn Expedition. 



No. 2. Stenopylls coarctata, MoUdff. Masbate, Bohol, 

 and Panglao Islands. 



1894. Pledopylis coarctata, MoUdff, Nachr. d. d. Malak. Ges. p, 113; 



Tryon's Man. of Conoh. (series ii.) vol. ix. p. 146. 

 1897. Brazieria coarctata, MiJlldff. Abband. d. Naturf. Ges. Gorlitz, 



p. 123. 

 1897. Brazieria coarctata, v. majuscula, Molldff. Abband. d. Naturf. 



Ges. Gorlitz, p. 123. 



In this species the laminre are reduced to two small 

 nodules. Specimens received from Quadras of coarctata 

 from Panglao Island and of coarctata, var. majuscula, from 

 Masbate island show no appreciable difference in size or 

 otherwise. I have not been able to find any description of 

 the V. majuscula. 



No. 3. Stenopylls microiiscus, Bavay. IIumbi)ldt Bay, 

 New Guinea. 



1908. Helix (Puh/rp/ra) microdiscus, Bavay, Moll. terr. et fliiv., K(5- 

 sultats de I'Exped. Sc. Neerlaiid. a la Nouv. Guin^e, v., Zool. p. 283, 

 pi. xiv. figs. 10 a-d. 



A co-type in the collection of Prof. Bavay has 3^ whorls, 

 thus agreeing with the description quoted above, but the 

 figure given has 4^ whorls. If Prof. Bavay's specimen 

 agrees with the type, microdiscus is not, in my opinion, 

 separable from hemiclausa. 



The vi^ide geographical range of the foregoing species has 

 been suggested as a difficulty in placing them together in 

 one genus, but to me, judging by their shells only, it seems 

 highly improbable that such closely allied forms can belong 

 to different genera. 



I am indebted to J. II. Ponsonby, Esq., for valuable 

 suggestions, and also to Prof. Bavay for allowing me to 

 examine his specimen of S. microdiscus. 



