30 F. Stoliczka — Ltuid-skells of Fenang Island. [No. 1, 



the whole body, if the animal can at all be closely compared with Limax, or 

 else it could not be a Mollusc at all. This was indeed well understood by 

 Ferussac, who in the next year referred to Pliilomycios, besides the four 

 insufficiently described species of Rafinesque, Limax caroUnensis of Bosc, 

 well known from description and figure, (copied in Hist. nat. des Moll., pi., 6, 

 fig. 3). And as Rafinesque's species had not been rediscovered and his de- 

 scriptions not made more complete, Fh. carolinensis remained to be considered 

 as the type of the genus, though I do not think that there can be much 

 doubt on the point, that Ferussac had correctly interpreted E-afinesque's 

 meaning. In any case there was no sufficient ground for introducing the 

 name Tehenoj^Jiorus for the same species. 



Keferstein (loc. cit.) has shewn by the anatomical examination of 

 the three typical species, Pliilomi/cus carolinensis, (seu Tehenophorus) , 

 Ulegliimatium striatum and Incillaria lilineata, that all three genera 

 have to be united into one. The general anatomy and dentition &c., 

 agree in all, the only traceable distinction of Phil, carolinensis consists 

 in the presence of a small amatorial organ, situated at the entrance of the 

 seminal receptacle. The presence or absence of this organ, or even of 

 that of a special amatorial gland (see ante, p. 13), is rightly considered by 

 Keferstein as insufficient for a generic separation of the American from the 

 Indian species. I had repeatedly opportunity of satisfying myself of this by 

 the observation, that the development of that organ does not only appear to 

 depend upon the age of the animal, but often even upon the season or peculiari- 

 ties of the conditions, under which the animal lives. As far as our materials 

 enable us to judge, we can, I think, look upon PJiilomycus as a well estab- 

 lished genus. For the present it has to be regarded as the sole representative 

 of the family. The finely radiately striated (in JPli. dorsalis coarsely ribbed) 

 jaw in part resembles that of the Vitrinid^, but the dentition has decidedly 

 more the character of true Helicidje. 



I have to notice one new species found on Penang. 



Philomtctjs pictus, n. sp. PI. Ill, figs. 9-14. 



Ph. corpore tenuiter cylindraceo, plus minusve (35 ad 46 m.m.) extenso, 

 antice rotundate subtruncato, postice acuminato, livido, copiose mucoso, 

 supra pallio Isevigato, lateraliter atque in parte postica nonnunquam subgra- 

 nuloso tecto, fasciis tribus longitudinalibus atratis, reticulationibus ejusdem 

 coloris junctis, picto, facia centrali latissima, duabus alteris tenuioribus ad 

 latus dorsi sitis et a margine inferiore distantibus ; orificio pulmonari antice 

 ad latus dextrum in incisione pallii sito, circiter 5 ad 7 m.m. a terminatione an- 

 tica distante ; pedunculis oculiferis circ. 5 m.m. longis, tentaculis brevissimis 

 ambobus paUidissimis ; pede infrCj, transversim plicatello, livido. 



