^42 CYCLOPHORID.E. 



360. Alycaeiis crenulatus, Benson. 



Ali/cceus crenulatus, Benson, A. M. N. H. ser. 3, iii, 1859, p. 180 ; 



i'feiffer, Mon. Pneum. Suppl. 2, 1865, p. 55 ; Hanlev & Theobald, 



Conch. Ind. 1874, pi. 97, ligs. 1,4; Theobald, Oat. Shells Brit. 



India, 1876, p. 39; Sowerb}^, in Reeve, Conch. Icon, xx, 1877, 



Alycaus, pi. 5, fig. 43 ; Nevill, Hand List, i, 1878, p. 295 ; 



Godwin-Austen, Land & Freshw. Moll. India, ii, 1914, p. 337, 



pi. 133, figs. 1-1 c. 

 Alycaeus (Charax) crenulatus, Kobelt & 3I(illendorff, Nachr. Ueuts. 



Malak, Ges. xxix, 1897, p. 152 ; id., Cat. Pneum. 1899, p. 48. 

 Alycneus {Dicharax) crenulatus, Kobelt, Uas Tierreich, Lief. 16. 



1902, p. 367. 



Ori(jinal description : — " Testa umbilicata, depresso-turbiiiata, 

 dense oblique costulata ; spira conoidea, sutiira prot'undiuscula, 

 apice papillari ; anfractibus 4 coiivexis, ultimo rotuudato. ad 

 latus inflate, eo costulis cout'ertioribus ornate, tuni juxtii 

 peristoma breviter constricto, Isevi, tubulo sutiirali elongato non 

 procul ab apertura oriente munito; apertura vix obliqua, circulari ; 

 pei'istoaiatis labio subduplici incrassato, exteriore reflexo, in- 

 teriore creuulato quadriplicato aperturam vix coarctante, labio 

 simplici, tenui, marginibus callo crasso prominente junetis. 



Umbilico profando, margine rotundato. Operculo ? 



"Diam. major 4, minor 31, axis 3 mill." 



Hah. India : Rungun Valley, 8ikliim ; Darjeeling, Namgu, 

 iiSOO ft., and Lingtam, Sikhim, 4(J00 ft. (Blanford) ; Dainsang, 

 Western Bhutan (Godiinn- Austen). 



" The constriction of the last whorl is near the aperture, witli- 

 out any intermediate ridge or swelling, in this respect showing an 

 affinity with amphora and urnida. In the erenulation of the 

 peristome it exhibits an analogy with scidpttilis of the normal 

 group, in wbich the crenulations are twelve in number, with the 

 origin of the siitural tube remote from the aperture. 



"The specimens examined are all weathered and bleached. It 

 is a singular circumstance, that each of the three natural sections 

 of Alycaus should have an analogical connexion through the 

 plicate peristomes of scidptilis, pAectocheiJus, and cremdatus." 

 [Benson.) 



" The specimen figured, from .Damsang, Western Bhutan, 

 differs somewhat from specimens I have come across in Blanford's 

 collection from ]N[amgii and Lingtam, Sikhira, in having much 

 stronger higher costulation." (Godwin-Austen.) 



361. Alycaeus crispatus, Godiv in- Austen. 



Alycceus crispatus, Godwin- Austen, J. A. S. B. xl, part 2, 1871, 

 p. 91, pi. 4, figs. 1,1 a, 1 h; id., op. cit. xliv, part 2, 1875, pi. 4, 

 fig. 3; id., op. cit. xlv, part 2, 1876, p. 175; Theobald, Cat. 

 Shells Brit. India, 1876, p. 39 ; Pfeiffer, Mon. Pneum. Suppl. 3, 

 1876, p. 389 ; Nevill, Hand List, i, 1878, p. 291 ; Godwin-Austen, 

 Land & Freshw. Moll. India, ii, 1914, pp. 371, 389, pi. 145, 

 tigs. ],la,lb. 



