CLAUSILIA, 319 



Haiiley, when figuring this form, considered it a variety of 

 CI. insignis, and in his explanation of plates indicated Pfeiffer as 

 being responsible ior the name gracilior, giving the following 

 reference : " Claasilia insignis, var. ^rrtci^ior, Pfeiffer (as of Grould), 

 Mon. Hflic. vol. 3, p. 5S9 ; Novit. Conch, vol. i." Now, Pfeitfer, 

 at the place cited, simply quotes Olausilia insignis, Gould, giving 

 a description based upon a specimen in the Cuming collection, but 

 he mentions no variety whatever, and in Xovit. Conch, vol. i, 

 pi. 34, tigs. 15-17, illustrates typical insignis. The present form 

 I consider quite distinct from Gould's and worthy of specific 

 rank. It is more cylindrical in shape, the apical whorls increasing 

 more gradually, the last whorl is not obliquely deflexed, the 

 aperture is more dilated, and the parietal margin of the peristome 

 is more widened and sinuous, while the shell is pale corneous not 

 dark chestnut. 



The shell figured by Hanley and Theobald having been pre- 

 sented to the British Museum by Mr. Harvey, I have taken the 

 opportunity of giving a more faithful representation of it, 

 together witii an enlarged view of the last whorl showing the 

 palatal plicae. As, moreover, it was never described, I have also 

 added a full description. 



282. Clausilia insignis, Gould. 



Clausilia insignis, Gould, Proc. Boston See. Nat. Hist, i, 1844, 

 p. 140 ; ibid., Boston, Journ. Nat. Hist, iv, 1844. p. 4.58, pi. 24, 

 fio-. 8 ; Pfeifter, Mon. Helic. Viv. ii, 1848, p. 42.3 ; ibid., Zeits. 

 Malak. vi, 1849, p. 94; ibid., Mon. Helic. Viv. iii, 1853, p. 589; 

 ibid., Novit. Conch, ser. 1, i. 1860, p. 122, pi. 34, figs. 15-17; 

 ibid.. Conch. Cab., Clausilia, 1861, p. 300, pi. .34, figs. 10, 11 ; 

 llanley & Theobald, Conch. Ind. 1870, pi. 24, fig. 2 ; Sowerbv, 

 Conch. Icon, xx, 1875, Clausilia, pi. 6, fig. 53, pU 7, fisr. 53 6. 



Clausilia (Phaedusa) insignis, Pfeifi'er, Malak. Bliitt. ii, 1856, p. 180 ; 

 von Martens, Die Heliceen, ed. 2, 1860, p. 275 ; Blanford, 

 J. A. S. B. xli, 1872, p. 204, pi. 9, fig. 11 (insignis of Gould), 

 fig. 12 {insignis of Pfeifferj ; Stoliczka, torn. cit. p. 208. 



Clausilia {Phaedusa {Pseudonenia)) insignis, Boettger, Ber. GfFen- 

 bacher Ver. Naturw. 1878, Mitt. p. 55; Pfeiffer & Cle.ssin, 

 Noiuencl. Helic. Viv. 1881, p. 391. 



Original descri[)tion : — " Testa fusiformi, sinistrorsa, solida, 

 castanea ; anfr. 9 convexis, leviter striatis, apertura purpurea, 

 rotundata, lamellis duabus fortibus postice, et quiuque tenuibus 

 per testam apparentibus, intus instructa ; labro valde reflexo. 



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

 chestnut-brown ; whoids eight, convex, very delicately and regu- 

 larly 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 breaking away 

 half of a A olution, we find five other very delicate laminae, which 

 may be seen externally, by looking at the umbilical aspect of the 



