138 CATAULUS 
album, continuum, breviter adnatum, incrassatum, horizontaliter 
patens et reflexiuseulum, basi vix productum, canali mediocri 
perforatum. — .Operc.? — Long. 23, diam. 10 mill. Ap. c. 
perist. 9 mill. epe 8'/, lata. (Mus. Cuming.) 
Cataulus pyramidatus. Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
- -- Chemn. ed. YI. Cycl. t. 48. f. 11. 
B. Major, perist. basi subangulatim producto; long. 929, diam. 12!/, mill.; 
ap. c. perist. 11 mill. longa, 10 lata. (Mus. Cuming.) 
Cataulus pyramidatus var. Chemn. |. c. f. 9. 10. 
Habitat in. insula. Ceylon. 
237 5. €. eurytremua Pr. 
T. subperforata, subfusiformi-oblonga, solida, subarcuato- 
striata, vix nitidula, castanea ; spira turrita, apice Gluten 
anfr. 8'/, convexi, ultimus angustior, basi oblique supra axin 
protractus; carina basalis vahda, compressa, antice sensim 
tubae instar dilatata; apertura circularis; perist. carneum, con- 
tinuum, breviter adnatum, incrassatum et reflexum, parte sinis- 
tra marginis basalis canali magno subcirculari, retrorsum in 
rimam filiformem abeunte, perforato. — Long. 26, diam. 10 
mill. Ap. c. perist. oblique 8'/, mill. longa, 7'/, lata. (Mus. 
Cuming.) 
Cataulus eurytrema Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
-—— -— Chemn. ed. II. Cycl. t. 48. f. 12. 13. 
Habitat in insula Ceylon. 
238 6. €. Thwaitesi Efr. 
T. vix perforata, subfusiformi-turrita, solida, longitudina- 
liter confertüm | costulata, vix niüdula, violaceo-fusca; spira 
ovato-turrita, apice acutiuscula; sutura impressa; anfr. (— 1!/, 
convexiuseuli, ultimus vix attenuatus; carina basalis validis- 
sima, compressa, angulatim patens, alba; apertura verticalis, 
cireularis; perist. duplex, album : internum basi profunde inci- 
sum, externum ad anfr. penultimum excisum, caeterum incras- 
satum, reflexum, basi canali mediocri perforatum. —  Operc.? 
Long. 19, diam. 7 mill Ap. c. perist. 6 mill. longa et 
lata. (Mus. Cuming.) 
Cataulus. Thwaitesi Pfr. in Proc. Zool. Soc, 9 Mart, 1852. 
-— — Chemn. ed..1I. N. 6. t. 49. f. 9. 10. 
Habitat in insula. Ceylon. ((Thwaites). 
