ANATOMY OF A COLLECTION OF SLUGS FROM N.W. BOPvNEO. 297 



agrees with the genus as known from Java. If this view should ultimately prove to be 

 correct, then the Bornean slug-fauna would show a closer agreement with that of the 

 Philippines, rather than with that of Java. 



Damayantia is another genus peculiar to Borneo. Hitherto it has been known 

 only from Issel's description ; it is now for the first time re-described, with some account 

 of the anatomy and an emended description of D. dilecta, Issel. In the form of the 

 mantle this genus undoubtedly shows affinities with the genera Philippinella, Mlldff. 

 (8), and Parmunculus, Cllge. (2). 



In 1895 (3), in conjunction with Lieut.-Col. H. H. Godwin- Austen, I described a 

 new species of Damayantia from Borneo, and two new species of Microparmarion, 

 Simr. All three, however, were geuerically wrongly assigned. For the latter two Simroth 

 (13) has constituted a new genus, Collingea, and in this the former must now be placed. 

 In the same year Schepmann (10) described two new species — Parmarion goedhuisi 

 and Microparmarion litteratus. Unfortunately no particulars of their internal structure 

 were given, so that it is difficult to say if they are generically rightly named. 



Wiegmann (14), in 1898, described two further species — Parmarion macidosus 

 and P. ? dubius. This latter I have in the present paper included in the new genus 

 Wiegmannia. The former is perhaps the only species which approaches in its structure 

 the true Parmarions, though it may possibly prove to be more nearly related to 

 Wiegmannia. 



The remaining species all belong to the genus Veronicella, excepting one, the 

 Oncidium nigrum of Plate (9). 



III. The Genus Damayantia, Issel. 



This genus was founded by Issel in 1874 (6) upon three specimens which he named 

 D. dilecta. Accompanying the description, three excellent figures of the external 

 features are given, but no account of the internal structure ; and as there is only one 

 specimen in the present collection, I am, as yet, unable to supply this very desirable 

 information. A new species, D. carinata, is now described, and I am able to give some 

 details of its internal structure. 



Issel's original description # is incomplete, and in some points incorrect ; while some 

 of the characters set forth are undoubtedly due to the contraction produced by the alcohol. 

 His three specimens measured respectively 24, 17 '5, and 10 "5 millim. in length. The 

 specimen I have examined was 28 millim. long. All the D. carinata were about 25 

 millim. f 



* For comparison Issel's description is here reprinted. " Mollusco terrestre privo di conchiglia e di limacella 

 Mantello convertito in sacco viscerale e collocato alia parte anteriore del corpo. Apertura respiratoria situata a destra 

 del mantello ed vm po' all' imianzi. Orifizio genitale posto al lato destro del corpo. Testa munita di 4 tentacoli. Muso 

 claviforme. Bocca sprovvista (?) di mandibola. Codo fornita di poro muccoso." 



t For a very careful translation of those parts of Issel's work relating to the Slugs of Borneo, I am indebted to my 

 colleague, Professor C. BfevENOT. 



