EICESTULA.— Plate Y. 



ribs jet blaek, columella and interior of the apertui-e 

 violet. 



Hai. ? 



Distingiiislied by its violet mouth and the concentric 

 rows of black nodules. 



Species 38. (Mus Cuming). 



RiciKULA CAVERNOSA. Riciii. testa ovatd, giibosa, costis 

 fortibus loiigitudinalibus Urisqiie compressis tramversis 

 conspicue clathratd, areis interstitialibus sttbexcavatis ; 

 atbd, areis medianis rufo-fmck, colomeM et apertiira 

 fauce croceis. 

 The cavernous Ricinula. Shell ovate, gibbous, con- 

 spicuously latticed w'ith strong longitudinal ribs, and 

 transverse ridges, interstitial areas rather excavated ; 

 white, the middle row of areas red-bro\vn, columella 

 and interior of the aperture saffi-on yellow. 

 Hab. Island of Burias, Philippines (on the reefs at low 

 water) ; Cuming. 

 A remarkable species very accm-ately represented on an 

 enlarged scale in the accompanying plate. 



Species 39. (Mus. Cimiing). 



Ricinula muricata. Rick, testa ovatd, spird acutd, 

 anfradibus supenie concavo-depressis, infra conspicue 

 muricato-tuberculatis ; iiifus extusque albd. 



The prickly Ricinula. Shell ovate, spiie sharp, whorls 

 concavely depressed round the upper part, conspicu- 

 ously prickly tubercled beneath; white within and 

 without. 



Hab. ? 



Distinguished by its shai-p prickly sculpture. 



Species 40. (Mus. Cuming). 



Ricinula crocostoma. Ricin. testa subpyriformi-ovatd, 

 medio gibbosd, anfractibus superne depressis, longitudi- 

 naliter nodoso-costatis, costis siibdistantibus, interstitiis 

 lavibusj lutescente, costis nigerrimo-fuscis, columdld 

 labrique margine interna rnfo-croceis. 



The saffron-mouth Ricinula. Shell pyriformly ovate, 



gibbous in the middle, whorls depressed round the 

 upper part, longitudinally nodosely ribbed, ribs 

 rather distant, interstices smooth; yellowish, ribs 

 very dark brown, columella and inner edge of the lip 

 reddish saffi'on. 

 Eab. Isle of Capul, Philippines (on the reefs at low 

 water) ; Cuming. 



Verj- characteristic both in form and colom-iug. 



Species 41. (Mus. Cuming). 



Ricinula trifasciata. Ricin. testd ovatd, crassd, 

 solidd, spird acutd; longitudinaliter nodoso-costatd, 

 aperturd aiigvstd ; albd, fasciis tribiis cteruleo-atris 

 conspiciiiis ciitgitlatd ; cohimelld labrique margine 

 interno lacco-purpureis. 



The three-banded Ricinula. Shell ovate, thick, solid, 

 spire sharp, longitudinally nodosely ribbed, aperture 

 narrow ; white, encu-cled with three conspicuous blue- 

 black bands; columella and iimer edge of the lip 

 lake-pm-ple. 



Hah. Island of Bohol, Philippines (on stones at low 

 water) ; Cuming. 

 Resembling the R. zonata somewhat in its style of 



painting, but quite distinct on compaiison. 



Species 42. (Mus. Cuming). 



Ricinula turbinella. Riciii. testd ovatd, spird acumi- 

 naid, trann-ersim tenuissime striata, et liratd, an- 

 fradibus superne declivibus, medio nodulosis ; fiisco- 

 nigricante, nodulorum serie mediand albd. 

 The little top Ricinula. Shell ovate, spire acumi- 

 nated, transversely very finely striated and ridged, 

 whoris sloping round the upper part, nodulous in 

 the middle ; bromiish black, middle row of nodules 

 white. 

 Purpura turbinella, Kiener, Icon. Coq. viv. p. 29. pi. 9. 

 f. 25. 



Hab. ■ ? 



This appears to me to be identical with M. Kiener's 

 I Purpura turbinella. 



