240 HEMITROCHUS. 



boundary outwardly. Mouth dark inside. Large examples are 

 40-41 mill, high and of the same breadth ; other smaller ones com- 

 paratively higher, alt. 38-39, diam. 33J-37 mill., somewhat duller 

 and darker, the dilation of the columella rather stronger. (Mts., 

 Archiv. fiir Naturg. 1889, p. 195, t. 11, f. 4.) 



Islands Chios and Byrne, Ionian Archipelago. 



H. (POMATIA) BEILANICA (Desch. in sc.) Westerl. Unfigured. 

 Verb. k.-k. Zool.-bot. Ges. Wien, xlii, p. 34. Syria, near Beilan. 



Section MACULARIA Alb. (Vol. IV, p. 128). 



H. INTUSPLICATA Pfr. (Vol. IV, p. 144). PL 31, figs. 58, 59, 60. 



Additional figures of this species are here given, showing its wide 

 range of variation in size and color-pattern. 



Unfigured Macularice. 



H. leucochila Westerlund, Nachr.-Bl. D. M. Ges. 1892, p. 191 , 

 Seville, Spain. Nearest to H. asteia Bgt. 



Genus HEMITKOCHUS Swains. (Vol. V, p. 24.) 



H. STREATORI Pilsbry. Vol. IX, PI. 36, figs. 7, 8, 9. 



Shell imperforate, depressed, thin but rather strong, resembling 

 in contour Hernitrochus amplecta Gundlach of Cuba. It is white, 

 with dark purplish- brown apex and a narrow, continuous, well-defined 

 supra/peripheral band of the same color. Above this band there are 

 two lighter, interrupted subobsolete bands (sometimes confluent into 

 one) ; on the base there is a zone composed of several interrupted 

 lines or narrow bands, close together or confluent, broken into 

 blotches, fading into the ground-color on the edges, with a tendency 

 to form short streaks in the direction of the growth lines. Surface 

 hining, finely obliquely striate, except the smooth 1J apical whorls. 

 The spire is low-conoidal ; apex blunt ; sutures evenly, moderately 

 impressed; whorls 4*, slightly convex, the last depressed, deflexed 

 toward the aperture. Aperture very oblique, transversely oval, 

 obliquely truncated by the parietal wall, distinctly showing a band 

 within ; peristome thickened inside, upper margin simple, outer a 

 little expanded, basal narrowly reflexed, brown, appressed over and 

 closing the narrow axial perforation. 



Alt. 7, greater diam. 12, lesser diam. 10 mill. 



Cayman Island. 



Helix (Hernitrochus') streatori PILS., Proc. A. N. S. Phila. 1889, 

 p. 413, t. 12, f. 1. 



