VAGINULUS. 491 



angustus, transversim regulariter et crebre tenuistriatum. Orifi- 

 cium genitale inferius in parte pallii dextera versus medium 

 4 mill, a pede erumpens." (Tapparone Ganefri). 



Length 59, breadth 18 mill. 



Hob. Burma : Thigyan, Upper Irawaddy (Fea). 



This species is considerably larger than F. proximus and some- 

 what broader in proportion to its length. The body has almost 

 the shape of an elongated rectangle, the lateral margins of the 

 mantle being nearly parallel, while the anterior and posterior 

 margins are scarcely attenuated and almost truncate. The 

 mantle, in the upper part, is densely covered with minute granules 

 and rugae, and marked with small confluent blackish spots, dis- 

 posed in two lateral series, nearer to the margin than to the 

 median line, which at the middle of the margin is paler. The 

 lower part of the mantle and the foot are pale without a trace of 

 spots. The foot is rather narrow and furnished, as in the other 

 species, with numerous thin transverse striae. The female genital 

 orifice is placed at the middle of inferior right side ot: the mantle 

 at a distance of about 4 mm. from the foot. 



481. Vaginulus giganteus, Godwin- Austen. 



Vayimdus yiyanteus, Godwin-Austen, P. Z. S. 1895, pp. 443. 451. 



Original desertion: " Animal elongate in form; female orifice 

 28*5 mm. from the extremity of the foot. 6 from the middle line 

 of the foot, 1-5 from the pedal groove. The colour in the 

 spirit-specimen is above grey, with dark mottlings, paler near 

 the head, and a narrow pale line down the centre of the back ; 

 below dull ochre. Upper surface smooth to the eye, under the 

 lens closely pitted. The sole of the foot narrow, slightly wider 

 than the adjacent under surface. The foot is crossed by rather 

 close, very regular folds, which form distinct grooves across it, 

 very thin, even in width ; there are twenty-two such folds in 

 10 mm. of length, and each transverse fold is divided by a very 

 fine secondary groove. The tentacles, although contracted, are 

 large. 



" Total length 68 mm. ; total breadth 23 ; breadth of foot 9." 



Hob. Andaman Islands : Port Blair (Harold Godwin- Austen] . 



"This is a remarkably large species, 13 mm. larger than 

 anything described by Semper from the Indian region ; the 

 largest mentioned and figured by him is V. voigtii, described 

 from a specimen in the Copenhagen Museum. Locality unknown. 

 It differs from Seinper's drawing of this species in being nar- 

 rower as compared with its length, and in the sole of the foot 

 Semper's drawing is life-size and could not fail to show the 

 transverse ridges." (Godwin-Austen.} 



