1918.] H. H. Godwin- Austen : Mollusca, VI 11. 593 



is met with in other and very distinct families, for instance in 

 Streptostele {Elma) nevilli var. dtibia, Von Martens and Wiegmann 

 in Mitt. Zoolog. Samml. Berlin, 1898. They describe and figure the 

 foot, flattened out above in a manner somewhat similar but not 

 quite the same as in the Abor mollusc, a form of foot they desig- 

 nate as ' ' fuss wulst. ' ' 



Recently Mr. Guy C. Robson has described and figured an 

 interesting shell from Madagascar {Jour. Linn. Soc. vol. XXXII, 

 p. 382, pi. XXXV, figs. 11,12, 13), for which he has created a new 

 genus Bathia, type madagascariensis , Robson. It has a remark- 

 able resemblance to this Abor shell in the flat apex, particularly 

 when viewed from above, but a great difference is seen when 

 looked at in front in the far larger aperture of the Abor mollusc, 

 an indication of a very different animal to the one which would 

 occupy the narrow whorls of Bathia. Mr, Robson associates the 

 Mauritian species praetumida with Bathia. 



Khasiella? dinoensis, n. sp. 

 (Plate li, figs. 12, 12a; pi. liv, figs. 1-3,) 



Locality. — Dino, Abor Hills {Capt. G. F. T. Oakes, R.E.). 



Shell imperforate, flatly conoid, shin}^ on base, membranace- 

 ous ; sculpture fine transverse striation above, with irregular wavy 

 ridges of growth under a high power ; colour dark ochraceous; spire 

 depressedly conic, sides flat, apex blunt; suture shallow; whorls 

 5, subangular on the periphery, regularly increasing; aperture 

 lunate, subvertical ; columellar margin scarcely reflected. 



Size: major diameter 9, alt. axis 4"5 mm. 



There were three specimens, the largest about 10 mm. in 

 major diameter was dissected and was an immature shell. It is 

 difficult to say what genus this species should be placed in. 

 '' Khasiella" seems the most approf^riate, looking at the shell 

 characters. More specimens are required to settle this. 



Animal. The visceral sac quite plain, a pale ash colour, only 

 some short and long black streaks, in the second specimen these 

 took the form of regular dots on the branchial cavity with a black 

 line along the side of the rectum. Shell lobes are absent, the dorsal 

 lobes and all up to the mantle edge a very dark brown, in sharp 

 contrast to the pale colour of the visceral sac The foot (pi. liv, 

 fig. 3) is short, pointed, folded along the centre of the sole (pi. liv, 

 fig. 2) and segmented. The mucous gland is small and much 

 hidden by the contraction of the animal and might be considered 

 absent at a cursory glance, but the drawings I give will show it is 

 present. 



The radula has the central and admedian teeth with a cusp 

 low down on the outer side as usual, the marginals are nearly 

 evenly bicuspid, arranged thus 25.2.12.1.12.2.25 or 39.1.39. 



Jaw (pi. liv, fig. I) solid, rather straight in front with a prom- 

 inent central projection. 



