CYCLOPHORUS §. 8. 55 



64. jflexieaniiii* IWenUe. (Coll. 71. — Cyrtotoma 

 mexicavum Nbrvh Yold. p. 40. n. 807. — Cijclo- 

 ius Mcxicanus Pfr Mon. Pneum. n. 32. ■ — Cirdy 

 Phan. p. 19. — Cyrtotoma Ad. Gen. p. 276. — 

 Operc. tenue, corneum , subseptemspiratum ! — /?. 

 Testa majore, fulva; diam. maj. 27Y2) min. 21'/o, 

 alt. 12 mill. Cordova, Vera Cruz legit Salle.) . . Mon. p. 34. 



65. C Pnrma Benson. -f- 



..Testa latissime umbilicata, planato-depressa , discoidea, 

 tenuiuscula, confertim et arcuatim sericato-striata, saturate cas- 

 tanea, flammulis nonnullis pallidis versus spiram ornata , sub- 

 tus interdum pallidiori ; spira planata , apice nullo modo pro- 

 minente, sutura profunda ; aniractibus 5 convexis , ultimo an- 

 tice descendente; apertura valde obliqua, ampla, ovato-rotun- 

 data, superne angulata, intus livide caerulea; peristomate 

 duplici , interiori continuo , albido , ad dextram expansiusculo, 

 exteriori breviter interrupto , expansiusculo . fusco-corneo ; 

 margine columellari subtus recedente, dextro prorsum arcuato ; 

 umbilico latissimo, minime profundo. Operculo tenui, corneo, 

 SY^-spirato, suturis intus extusque pulchre carinatis. — Diam. 

 major 26, minor 23, alt. 6 mill." (B.) 



Cyctophorus Parma Bens. in Ann. and Mag. 2d. ser. XVIII. p. 94. 

 Habitat in regione montana insulae Ceylon (E. L. Layard). 



O b s. „Forma et umbilico similis Pterocyclo hispido Pcars. Anfractus 

 operculi laete cornei minus arcte convoluti quam in C. Cratera." 



66. C. Cratera Benson. t 



„Testa late umbilicata, planulato-depressa , subdiscoidea, 

 tenuiuscula, radiatlm et confertim ruguloso-striata, vix nitidula, 

 fulvo-cornea, raro castaneo-strigata; spira planulata, apice vix 

 prominente , sutura profundiuscula ; anfractibus 5 convexius- 

 culis , ultimo longe lenteque descendente ; apertura obliqua 

 mediocri, subrotundata, superne angulata, intus albida; peristo- 

 mate duplici , interiori continuo , acuto , breviter porrecto, 

 exteriori expansiusculo , breviter adnato , albido ; . umbilico 

 aperto profundiusculo. Operculo tenui, corneo, 7-spirato; 

 anfractibus valde angustis, suturis intus et extus pulchre cari- 

 natis. — Diam. major 22 — 24, minor 18 — 20, alt. 6 — 8 

 miU." (B.) 



Cyclophorus Cratcra Bens. in Ann. and Mag. 2d. ser. XVIII. p. 94. 



/?. Minor; diam. maj. 13, min. 11, alt. 4 mill. 



