from the Andaman Islands, Burmah, and Ceylon. 319 



tained from Port Blair fully bear out the distinctive characters 

 from H. asperella, Pfr., founded on the examination of a single 

 dead specimen. 



3. Helix Scenoma, B., n. sp. 



H. testa anguste infundibuliformi-umbilicata, subgloboso-conoidea, 

 oblique irregulariter striata, striis miuutissimis spiralibus decus- 

 sata, sub epidermide cornea albida, carina interdum fascia rufo- 

 castanea ornata ; spira conoidea, apice obtusiusculo, sutura im- 

 pressa ; anfractibus 6, convexiusculis, ultimo antice vis descen- 

 dente, ad peripheriam obtuse subcompresso-carinato, subtus con- 

 vexo, circa umbilicum compresso ; apertura obliqua, subquadrato- 

 lunata, peristomate expansiusculo, margine columellari reflexi- 

 usculo. 



Diam. major 16, minor 14, axis 11 mill. 



Var. depressa : diam. major 17, minor 15, axis 10| mill. 



Habitat prope Moulmein. 



A single specimen, slightly worn, of the type was received 

 with Helix Gordonice. Specimens of the depressed form were 

 collected by Col. Robert Gordon. 



4. Helix brachyplecta, B., n. sp. 



H. testa dextrorsa, late umbilicata, discoidea, obesiuscula, minute 

 arcuato-striata, striis miuutissimis spiralibus obsolete decussata, 

 opaca, non nitida, rubescenti-castanea, superne saturatiore, circum 

 apicem succinea ; spira planata, apice vix prominente, sutura im- 

 pressa ; anfractibus 6, lente accrescentibus, convexiusculis, ultimo 

 rotundato, superne prope suturam subangulato, antice descendente ; 

 apertura obliqua, rotundato-lunari, subauriculata, intus lilacina ; 

 peristomate expansiusculo, reflexiusculo, rufo-castaneo, marginibus 

 remote convergentibus, plica arcuata prominente parietali junctis, 

 lamina longiuscula subascendente e medio plicae intus recedente, 

 plicis 2 parietalibus remotis verticalibus, quarum externa arcuata 

 internaque curvata, laminis 6 remotioribus palatalibus, quarum 

 superiore et basali tenuibus et 4 medianis incrassatis, foveatis ; 

 umbilico lato, concavo. 



Diam. major 22, minor 18, axis 8 mill. 



Habitat ad ripas fluvii Attaran prope Moulmein. Teste Col. R. 

 Gordon. 



An obese dextrorse Plectopylis, bearing, in some degree, the 

 same relation in form to H. refuga, Gould, that H. Charpentieri, 

 Pfr., does to H Rivolii, Fer. ; but the interior parietal and pa- 

 latal larninse and plicse differ widely from those of the shell from 

 Phye Than, referred to, in the ' Annals ' for April 1860, as a 

 dextrorse variety of H. refuga, and from all the other species 

 which have come under my inspection, including two new forms 

 discovered by Mr. W. T. Blanford in Ava and Pegu. 



