ALYCAEUS §. 5. 
389 
Alycaeus diagonus Haul, fy Theob. Conch. Ind. t. 103. f. 
Habitat „Diyung valley, north of Asalu, : 
district “ Indiae. 
N. Cachar 
28. polygonoma Blanf. — Conch. Ind. t. 96. f. 2. 3. 
30. nitidus Blanf. — Conch. Ind. t. 94. f. 4. 7. 
31. Richthofeni Blanf. — Conch. Ind. 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. 
35 a. A. crispatus Austen. + 
„ Testa 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 confer te costata. Spira. conoi- 
dalis, apice acutiusculo, sutura bene impressa. Anfr. 4, rotun- 
dati, ultimus latere modice inflatus, turn per spatium breve 
constrictus et laevigatus, turn 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 eonvexum, 
antice perconcavum.“ (A. angl.) — Dimensiones non indicatae. 
Alycaeus crispatus Godwin Austen in Journ. As. Soc. Beng. XL. 1871- 
p. 91. t. 4. f. 1. 
Habitat „Khasia, Jaintia et North-Cachar Hills“ Indiae, 
frequens. 
35 b. A. Jaintiacus Austen, f 
„ Testa subobtuse perforata, turbinata, pallide succinea 
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, rotundati, ultimus levissime inflatus, turn 
modice constrictus, turn denuo in cristam humilem, subrecur- 
vatam tumescens. Constrictio laevigata; tubulus suturalis bre- 
viculus, subtilis. Apertura subverticalis, rotunda. Peristoma 
