458 Descriptions of Land Shells 



CLAUSILIA INSIGNIS. 



Plate XXIV. Fig. 8. 



Testa fusiformij sinistrorsa, solida, castanea; anfr. 9 convexis, leviter striatis ^ 

 apertura purpurea, rotunclataj lamellis duabus fortibus postice, et quinque tenuibus^ 

 per teslarri apparentibus, intus instrucla; labro valde reflexo. 



Description. 



Shell reversed, solid, large, fusiform, ventricose, of a dark 

 chestnut brown ; whorls eight, convex, very delicately and 

 regularly striated, shining, summit mamillated ; aperture ovate, 

 broadly rounded in front, with a sinus behind, produced by 

 one of the two large folds which are there found ; on break- 

 ing away half a volution, we find five other very delicate 

 lamina, which may be seen externally, by looking at the um- 

 bilical aspect of the shell ; the posterior one is near the suture, 

 and extends nearly a whole volution ; the others intervene, at 

 nearly regular intervals, between it and the umbilicus ; throat 

 purplish ; lip very broad, flattened, white, tinted with purple. 



Length 1 inch ; breadth 1 of an inch. 



Resembles, in shape, color, and the arrangement of the 

 external lamina, C. Maccarana ; but it is larger and more 

 ponderous than any other species with which I am acquainted. 



CYCLOSTOMA PERNOBILIS. 



Plate XXIV. Fig. 11. 



Testa depresso-conica, apice acuta, late umbilicata ; aiifr. 6 subdepressis, striis 

 incrementi conspicuis et striis volventihus rugulosis, ultimo carina costali albida 

 cincto ; apertura magna, intus c?erulescente, labro crasso, expanso, vivide sanguineo : 

 supernc coloribus piceis et lutescentibus vari} nubeculata ; infra albida, lineis piceis 

 volvenlitus interrupta. 



Description. 



Shell depressed-conical, apex acute, solid ; whorls six, 

 rapidly increasing, and rising into a pyramidal spire, depressed 

 near the suture. In the early stages, the whorls are acutely 

 carinated ; but, at maturity, the last whorl is rounded, and 

 girt with an obtuse, whitish rib ; the surface is rendered some- 

 what rugose, by rather conspicuous lines of growth, and coarse 

 revolving lines, which, as they cross the finer longitudinal 

 lines, seem to rufi in zigzag. Prevailing color above is dusky 



