46 PTEROCYCLOS $&. 3. 
19 8 Pt. hispidus Pearson. 
T. late umbilicata, discoidea, solida, lineis elevatis con- 
ferüs, concentricis, striisque incrementi subülissime decussata, 
sub epidermide hispidula, olivaceo-fusca, saturatius lineata, 
alba; spira plana; anfr. 5'/, subdepressi, ultümus 7—8 mill. 
pone aperturam rostro triangulari, subaperto, recurvato, sutu- 
ram tangente munitus, antice descendens; apertura coerules- 
centi-albida, obliqua, subcireularis; perist. duplex: internum 
expansiusculum, undique appressum, superne triangulatim ex- 
cisum, externum expansum, superne ad anfractum penultimum 
in cucullam planam dilatatum. — Opere. extus convexum, 
lamella angusta 3—4-spirata cireumvolutum, superne planum, 
intus concavum, castaneum, nitidum. — Diam. maj. 28, min. 
22!/, alt. 8 mill. Ap. diam. 8 mill. (Mus. Cuming. et v. d. 
Busch.) 
Spiraculum hispidum Pears. in Journ. As. Soc. II. 1833 p.391. t. 20. 
Cyclostoma spiraculum Som. 'Thes. N. 59. p 110. t. 31. £ 270—272 *) 
— — Petit in Journ. Conch. 1850: I. p. 43. 
Steganotoma Princepsi v. «&. Busch in Phil. Abbild. L 5. p. 106. Cy- 
elóst. t. l. f..6. 
Pterocyclos hispidus .Bens. in Journ. As. Soc. V. 1836. p. 355. 
z — Bens. in Ann. and Mag. 2d. ser. I. 1848. p. 346. 
— -— Pfr. in Zeitschr. f. Malak. 1851. p. 6. Consp. 
N. 82. 
— — et Prinsepsi Gray Catal Cycloph. p. 12. N. 1. 2. 
-— Prinsepi Pfr. in Zeitschr. f. Malak. 1847. p. 111. 
— — . QChemmn. ed, ll. Cyclost. p. 195. t. 24. f. 7— 10. 
Habitat in regione Himalayana Indiae; Khasya Hills (Denson). 
80 9. EP't. rupestris Benson. 
T. late umbilicata, depressa, suborbiculata, solidula, corneo- 
albida, striatula, medio fascia castanea ornata, superne flam- 
mulis castaneis (basi obsoletioribus) variegata; spira subplana, 
medio prominula; anfr. fere 6 convexi, ad suturam profundam 
rugulosi, ultimus teres, non descendens; apertura obliqua, sub- 
*) T. suborbieulari, planorbula, crassiuscula , albieante, castaneo radia- 
tim irregulariter strigata, epidermide fuscescente induta; anfr. 5 rotundatis, 
nonnunquam laevibus, nonnunquam spiraliter striatis, striis subasperis; aper- 
tura cireulari, peritremate duplici, interno angusto, subreflexo, postice emar- 
ginato, externo crassiusculo, reflexo, postice in canalem desinente ; anfractu 
ultimo spiraeulum tubulosum, vel fornieatum prope aperturam gerente; um- 
bilieo maximo, expanso; operculo multispirali, intus concavo, extus convexo, 
lamina spirali conspicua munito. (Sow. l. c. 
