28 F. Stolic^.ka — Land-shellf: of Pen cm rj Island. [No. 1, 



Var. exilis, attenuate fusiformis, vide fig. 4 et 4<a ; long. 27, lat. 0, 

 long, apert. 6'3, lat. 4*6 m.m. 



Hah. — Penang hill, frequens. 



This is an extremely variable species as regards the shorter or longer 

 fusiform shape of the shell, and also as regards the size of the aperture, but 

 both these variations are very commonly observed in other species of the 

 genus, and particularly in the allied Malayan species CI. Oouldiana, Pfr., 

 insignisj Gould,* and Sumatrana, Martens. f All three have a similarly 

 variable shape, and finely striated, moderately convex, whorls, but in the two 

 former the aperture is much shorter of a squarish shape, and in the last it is 

 conspicuously longer ; E. v. Martens gives its length at 8 m. m. in a speci- 

 men, the total length of which is from 23*5 to 31'5 m. m. In this last species, 

 which also comes nearest to the Penang shell, the whorls appear to be slight- 

 ly less convex and there are only five palatal plates present. 



The animal is uniform grey covered with small pale brown warts, darker 

 on the back, paler on the pedicles, which have very small, black eyes ; tenta- 

 cles very short. 



The general anatomical structure agrees with that which I published 

 of Gl. Philippiana, (comp. J. A. S. B., vol. xl, pt. II, 1871, p. 174, pi. vi, 



fig- 8)- . 



The genital organs are distinguished by a very great length of both the 



uterus and the penis, both of which are much twisted. The only appendage 



is that of the seminal recep table, which is comparatively small and narrow, 



situated at the end of a long peduncle. 



The jaw is very short, about 0*5 m. m. broad, apparently smooth ; only 

 very faint radiating and concentric lines are to be observed in certain lights. 



The radula is about 2 m.m. long and 0*5 m.m. broad ; it consists of 

 about 125 rows, with 61 teeth in each row. All are provided with a strong- 

 ly curved cusp ; after about the fifteenth tooth, they rather rapidly decrease 

 in length. Towards the end of each row they become multi-serrated, while 

 the basal plate almost entu-ely disappears. The last teeth are very short, but 

 broad, almost linear and entire, 



CLA.USILIA [Phjedusa] filicostata, n. sp. PI. Ill, figs. 7-8. 

 CI. testa fusiforme turrita, apice sensim attenuata, subrimata, tenui, pal- 

 lide cornea ; anfractibus 10 ad 11, lente convexiusculis, sutura simplici junctis, 

 ad suturam filiforme marginatis atque infra marginem paulum contractis, trans- 

 versim oblique dense costellatis, antepenultimo vix latiore quam penultimo, 

 ultimo versus apertm'am paululum contracto ; apertura ovate subtrigona, 

 postice, (aut supra), subangulata, peristomate expanso, undique libero, plica 

 * J. A. S. B., xli, pt. II, pp. 203, 204, 208, pi. ix. 

 t Ost-Asiat. Exped , 1867, p. 379, pi. 22, fig. 17. 



