GUDE : ON- CHLORITIS. 43 



rounded at the periphery ; last whorl slightly descending, then 

 suddenly and shortly deflected in front, and a little dilated at the 

 mouth. Aperture rotundate-cresceutic, oblique, light purplish livid 

 within, margins approaching, united by a thickish light-purple 

 flexuous callus, which bears, near the iipper margin, a crescentic 

 swelling ; peristome pale purplish, becoming whitish at the columella ; 

 thickened, expanded, and reflected ; upper margin shortly ascending 

 at first, then rounded, basal sloping upward, columellar dilated above, 

 ascending forward, and slightly overhanging the narrow pervious 

 umbilicus. Diam. maj. 45, min. 37'5 mm. ; alt. 24 mm.; apertura, 

 lat. 26 mm. 



Mah. — Bangaya, off East Celebes. 



Type in tlie Eritish Museum. 



This new species can only be compared with C. Grwieri, Pfr., but 

 that species, although considerably smaller, possesses half a whorl more, 

 has a more elevated spire, a much more strongly developed peristome, 

 bears a conspicuous tooth on the callus, and its aperture is more 

 contracted laterally. 



I am indebted to Mr. Smith for allowing me to describe and figure 

 this handsome species. Mr. Da Costa possesses a specimen similar to 

 the type from the same locality. 



Chlokitis hetekomphalus, Pilsbry. 



Chloritis heteromphaliis, Pilsbry : Man. Conch., vol. vi, pi. li, figs. 60-62 

 (no description). 

 Two specimens, labelled Chloritis sp., sent to me by Messrs. 

 Sowerby & Fulton, appeared to agree vrith the above quoted figures 

 of C. heteromphalm, a species as yet undescribed, and not included by 

 Pilsbry in his " Guide to the Study of Helices." I therefore submitted 

 one shell to Professor Pilsbry, who states that C. heteromphaliis agrees 

 well with my shell in most respects, and he has no doubt that 

 "they are specifically identical ; he adds that the description of his 

 shell was omitted accidentally. As Professor Pilsbry has undertaken 

 to supply a description of the type for these pages, I merely allude to 

 the species en passant. The two specimens referred to measure : 

 diam. maj. 29, min. 25, alt. 14 mm., and diam. maj. 30, min. 24-5, 

 alt. 13"5mm. respectively. 



Chlokitis eustoma, Pfr. 

 Helix eustoma, Pfr. : Proc. Zool. Soc, 1856, p. 383. 



Considerable confusion appears to exist with regard to C. eustoma 

 and C. erinaceus. Mr. Smith has expressed the opinion that the two 

 names represent one species (Proc. Zool. Soc, 1885, p. 594), while 

 Dr. Dohrn (Conch. Cab., Helix, vol. iv, 1879, p. 572, and 1881, p. 602) 

 considered them distinct. Professor Pilsbry (Man. Conch., vol. vi, 1891, 

 pp. 251, 253) concurs. Dohrn considered C. erinaceus closely allied 

 to, if not identical with, C. discordialis, Fer., which view is adopted 

 by Pilsbry ; the latter species, however, is quite different, having 

 relatively a much larger diameter and a wider aperture, and the hair- 

 scars are much more crowded. A careful comparison of the types of 



