486 Dr. Cantor on the Flora and Fauna of Chusan. 



ralem ; abdomine albo-flavescenti ; alis dorsalibus, caudalibus anali- 

 busque nigris ; ventralibus albo-flavescentibus ; pectoralibiis latfe 

 nigro-marginatis. Cirrhi-^-. 



D. 5 ; C. 15 ; A. 80 ; P. 1 H- 5 ; V. 14 ; Br. 5. 



Habitat. Fresh and brackish water. 



Shining ohve-green or brown, with two rows of black minute dots 

 below the lateral line. The abdominal surface yellowish white. The 

 dorsal, caudal and anal fins black ; ventrals yellowish white ; pec- 

 torals the same colour, with a broad black brim. 



Apodal Malacopteuygii. 

 Mursenida;. 

 ^Anguilla latirostris, Yarrell. 

 Habitat. Fresh and brackish water. 



^ Synbraiichus grammicus. S. supra flavo-rufescens, infra lineam 

 lateralem albo-flavescens, toto corpore lineis nigris inscripto. 

 Habitat. Streamlets, canals, estuaries. 



Reddish yellow above the lateral line ; beneath bufF, with nume- 

 rous black inscription-like lines all over the body. 



5. MOLLUSCA. 

 {Described by W. H. Benson, Esq., Bengal Civil Service.) 

 Gasteropoda. 

 Pulmonifera. Terrestria. 



Incilaria ■[ , nov. gen. Corpus elongatum, postice attenuatum, 

 repens, undique velo marginatum. Tentacula quatuor, superioribus 

 oculiferis, inferioribus integris. Foramen commune in latere dextro, 

 non procul ab extremitate antica veH situm. 



* Incilaria bilineata. Corpore livido, velo punctis maculisque fuscis 

 conspersis ornato, lineis duabus lateralibus, nigrescentibus, unica ob- 

 scuriore mediana strigata. Long, ad poll. 1^. 



Habitat. The earth, under roots, on trees and plants. 



*Helix ravida. Testa subglobosa, umbilicata, epidermide olivacea, 

 anfractibus sex transverse subplicatis, ultimo v^entricoso, suturis im- 

 pressis, umbilico mediocri ; apertura suborbiculari elongatiuscula, 

 labio reflexo, tenui explanato, labro acuto. Axis 1"3, diam. TSS. 



Habitat. Trees, stones, rocks, earth. 



"^Helix tapcina, Journ. Asiatic Society, vol. v. p. 352. No. 7. 



Habitat. N.E. frontier of Bengal. Rare at Chusan. 



*Helix naiiinoides. Testa solidiusculii, subdiscoidea, superne ra- 

 diatim tenuiter striata, infra striis Ipevigatis, distantibus ; spira de- 

 presso-conoidea,apice obtusato, planulato ; apertura transverse lunata, 

 labro obtuso, crasso, infra subreflexo. 



Habitat. Singapore ; scarce at Chusan. 



* Clausilia pluviatilis . Testa fusiformi pallide olivacea; spira atte- 

 nuata, crystallina, apice papillari ; anfractibus 14, medianis ventri- 

 cosioribus-, omnibus leviter transverse striatis ; peristomate valde 



t From incile, a (/utter, with reference to the gutter-like channel which 

 divides the mantle from the foot. 



