ALYCAEUS $. 5. 389 
Alycaeus diagonus Hanl. & Teob. Conch. Ind. t. 103. f. 1. 
Habitat ,Diyung valley, north of Asalu, in N. Cachar 
yung y 
district* Indiae. 
* 
28. polygonoma Blanf. — Conch. Ind. t. 96. f. 2. 3. 
30. nitidus Blanf. — Conch. Ind. t. 94. f. 4. 7. 
31, Richthofeni Blanf. — Conch. Iud. t. 94. f. 5. 6, 
33. bifrons Theob. — Conch. Ind. t. 93. f. 1. 4. 
34. hebes Bens. — Austen 1871. t. 4. f. 5. — Conch. Ind. t. 93. f. 5. 6. 
35. gemmula Bens. — Conch. Ind. t. 93. f. 7. 
35a. A. crispatus Austen. 1 
,lesta mediocriter umbilicata, turbinata, tenuiuscula, pal- 
lide cornea, in parte superiore anfractuum prope suturam sub- 
tiliter ac subdistanter plicato-costulata, in inferiore laevior, in 
parte inflata ultimi subtiliter et conferte costata. Spira conoi- 
dalis, apice acutiusculo, sutura bene impressa. Anfr. 4, rotun- 
dati, ultimus latere modice inflatus, tum per spatium breve 
constrictus et laevigatus, tum crista transversa leviter recur- 
vata, magis minusve prominente munitus, intervallo pone aper- 
turam fere laevi, sed versus peristoma gradatim undulationibus 
longitudinalibus impresso. Tubulus suturalis mediocris. Aper- 
tura diagonalis, marginibus externo ac supero undulata. Peri- 
stoma incrassatum, irregulariter duplicatum, expansum cum 
4 vel 5 undulationibus profundis in latere dextro, a puncto 
junctionis cum anfractu ultimo ad basin aperturae extensis, 
angulis internis in speciminibus veteribus fortiter prominen- 
tibus. Operculum multispirale, incrassatum, postice convexum, 
antice perconcavum.* (A. angl. — Dimensiones non indicatae. 
Alycaeus crispatus Godwin Austen in Journ. As. Soc. Beng. XL. 1871. 
p-391T, €. ACE 3. 
Habitat , Khasia, Jaintia et North-Cachar Hills* Indiae, 
frequens. 
35b. A. Jaintiacus Austen. 1 
.Lesta subobtuse perforata, turbinata, pallide suceinea 
vel alba, laevigata, in parte inflata anfractus ultimi subtiliter 
costata, vestigiis costularum subdistantium pone terminationem 
tubuli suturalis notata. Spira conoidea, apice obtuso, sutura 
impressa.  Anfr. 4, rotundat, ultimus levissime inflatus, tum 
modice constrictus, tum denuo in eristam humilem, subrecur- 
vatam tumescens. Constrietio laevigata; tubulus suturalis bre- 
viculus, subtilis. Apertura subverticals, rotunda.  Peristoma 
