304 MK WALTER E. COLLINGE ON THE 



Mr Edgar A. Smith sent me three specimens. One of these Godwin- Austen figured 

 (3, pi. xi. figs. 1-6), which undoubtedly belongs to the genus Collingea, Simr. One of 

 the remaining two I dissected, and described and figured the generative organs (cf. 3, pi. 

 xi. figs. 9-11) ; but, unfortunately, this was very distinct from the one which Godwin- 

 Austen figured, and on re-examining it I find that it and its fellow belong to the genus 

 Isselentia here described (p. 305). 



The specimen of Collingea smithi had been opened, and I have made a careful 

 examination of the generative organs, and figures of these are now given for the first 

 time (PI. II. figs. 34-36). The peculiar handle-like extension of the penis (the Henkel 

 of Simroth) at once characterises this species as belonging to the genus Collingea. 



Godwin-Austen has given (5, pp. 55-57) what he terms an amended description of 

 both the animal and anatomy of what was originally termed Damayantia smithi. The 

 description of the animal, of course, applies to Collingea smithi, whilst the anatomical 

 account applies, in so far as it is correct, to Isselentia globosa (p. 305). It is doubtful 

 if Godwin- Austen refers to a true Damayantia, especially as he compares these two 

 molluscs with D. dilecta. Issel's figures (6, T. iv. figs. 4-6) show how different the 

 genus is from C. smithi or /. globosa. 



This author, on p. 58, writes : "I illustrate the anatomy of Microparmarion with my 

 original drawings (those in the P. Z. S., 1895, being copies of them*)." The figures in 

 the P. Z. S. paper, which are credited to me, were made by me from the dissections. 



1. Collingea smithi, Cllge. and Godw.-Aust. 



PI. II. figs. 33-36. 



Damayantia smithi, Cllge. and Godw.-Aust. : Proc. Zool. Soc, 1895, p. 242, pi. xi. figs. l-i. 

 Damayantia smithi, Godwin- Austen : Moll, of India, 1898, vol. ii. p. 55, pi. lxxiii. figs. 1-7 d. 



Animal : body yellowish, with dark blue or bluish-brown mottling on the sides in 

 the posterior region. t. Mantle yellowish-grey with irregular dark blue or black 

 mottling ; has a thin shell-border and distinct lateral keel. Extremity of foot truncate. 

 Posterior portion of dorsum sharply keeled. Rugse large. Caudal mucous pore large, 

 but does not extend to the foot-sole. Peripodial groove well marked. Foot-fringe 

 yellowish-brown with faintly marked lineoles. Foot-sole darker than the foot-fringe 

 and divided into median and lateral planes. 



Length (in alcohol) 28 millim. ; breadth of foot-sole 4 '5 millim. 



Shell oval, membranaceous, thin, and shiny ; apical whorl distinct (PL II. fig. 33). 



Hab. — Poeh Mountain (3500 feet), Sarawak (A. H. Everett). 



Type in collection of British Museum. 



Generative Organs. — (PI. II. figs. 34-36.) 



The vagina is a wide, sac-like cavity, on the left side of which the receptaculuni 



* The italics are mine. — W. E. C. 



+ Originally described as a "very dark blue or black streak runs along the side of the foot posteriorly, crossing it 

 diagonally downwards to the mucous pore." The figure is wrong in showing this. 



