138 
CATAULUS. 
album, continuum, breviter adnatum, incrassatum, horizontaliter 
patens et reflexiusculum, basi vix productum, canali mediocri 
perforatum. — Operc.? — Long. 23, diam. 10 mill. Ap. c. 
perist. 9 mill, longa, 8 r / 3 lata. (Mus. Cuming.) 
Cataulus pyramidatus Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
— — Chemn. ed. II. Cycl. t. 48. f. 11. 
/ S . Major, perist. basi subangulatim product© ; long. 29, diam. 12% mill.; 
ap. c. perist. 11 mill, longa, 10 lata. (Mus. Cuming.) 
Cataulus pyramidatus var. Chemn. 1. c. f. 9. 10. 
Habitat in insula Ceylon. 
237 5. CJ. eurytrema Pfr. 
T. subperforata, subfusiformi-oblonga, solida, subarcuato- 
striata, vix nitidula, castanea; spira turrita, apice obtusiuscula ; 
anfr. 8 l / 2 convexi, ultimus angustior, basi oblique supra axin 
protractus; carina basalis yalida, 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 [ / 2 null, longa, 7 r / 2 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. C. Tlawatiesi PIV. 
T. vix perforata, sub fusiformi- turrita, solida, longitudina- 
liter confertim costulata, vix nitidula, violaceo - fusca ; spira 
ovato-turrita, apice acutiuscula; sutura impressa; anfr. 7- 7*/ 2 
convexiusculi , ultimus vix attenuatus; carina basalis validis- 
sima, compressa, angulatim patens , alba; apertura verticalis, 
circularis ; 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 Thrvaitesi Pfr. in Proc. Zool. Soc. 9 Mart. 1852. 
— — Chemn. ed. II. N. 6. t. 49. f. 9. 10. 
Habitat in insula Ceylon (Thwaites). 
