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Show 182 MR. G. F. ANGAS ON EIGHT N E W SPECIES OF [Feb. 4, Sect. c. Lamina of lateral wing broad, marginal ridge feebly second to eleventh dorsal segments multisulcate. 23. ZEPHRONIA SULCATULA. Zephronia sulcatula, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. x. p. 357. n. 13, pl. 18. f. 5(1872). Borneo ( W. Jeakes). Type, B.M. EXPLANATION OF PLATE XIX. Fig. 1. Spheerotherium glabrum, profile. 1 a. , anterior segments from above. 2. - - fratermum, profile. 3. stigmaticum, perspective view from behind. 4. Zephronia noticeps, head, nucbal plate, and anterior segments, enlarged ; front view. 5. lutescens, profile. 6. ignobilis, profile, enlarged. 7. pilifera, profile. 8. corrugata, profile. 9. banksiana, profile. 10. leopardina, profile. 5. Descriptions of Eight new Species of Land and Marine Shells from various Localities. By G E O R G E F R E N CH A N G A S , Corr. M e m . Z.S., F.R.G.S., F.L.S., &c. [Received December 16, 1872.] (Plate XX.) 1. E U T H R I A ARACANENSIS, n. sp. (Plate X X . fig. 1.) Shell ovately fusiform, solid, transversely ridged, the interstices finely transversely striate, the ridges stronger in front, pale olivaceous brown, ornamented with longitudinal irregular chestnut markings; whorls 9 to 10, strongly angulate and nodose in the middle, excavated above, and slightly rounded below ; aperture ovate, nearly half the length of the shell, angulate posteriorly, pale flesh-colour ; outer lip crenulate, finely sulcate within; columella strongly arcuate, with a moderate posterior callus; the rostrum slanting, recurved. Length 2 inches, diam. 1 inch (coll. Hanley). Hab. Aracan. 2. HELIX (SEMICORNU) SILENUS, n. sp. (Plate XX. fig. 2.) Shell deeply and perspectively umbilicated, rather thin, globosely depressed, pale brown, minutely and very finely punctately striate; spire immersed; whorls 5, rounded, rapidly increasing, the last inflated, a little flattened at the upper part, descending considerably in front, and somewhat angulated round the umbilicus; aperture oblique, rhomboidly lunate; peristome thin, whitish; margins approximating, the right flexuous, narrowly expanded ; the columellar margin rounded, expanded, and slightly reflexed. Maj. diam. 7, min. 6 ; height 5 lines. Hab. New Ireland. |