862 



Island of Mindanao, Philippines, and remarkable for the fusiform 

 shape produced by the size of the last whorl and the length of the 

 canal. 



52. Cerithium fusiforme (pi. clxxx. f. 106, 107), Nobis. 



Cerith. testa fusiformi, C. balteato simili, sed anfractibus in me- 

 dio angulatis, plicis albis, canali obliqua. 



A more fusiform shell than C. balteattm. The whorls are an- 

 gulnted in the centre. A pretty reddish-brown colour is interrupted 

 by the white plicaj. Philippines, H. Cuming. 



53. Cerithium muscarum (pi. clxxx. f. 108, 109, 110), Sag, 

 American Conchology, pi. 59. f. 2. 



Cerith. testa elongato-turrita, albida, longitudinaliter nodoso- 

 plicata, inter plicas spiraliter lineatim nigro punctata ; anfractibus 

 ventricosis, ultimo subtiis unicarinato ; apertura subovali ; canali 

 torto, subproducto ; labio externo angulato. 



This beautiful species is distinguished by the spiral rows of 

 blackish or reddish dots between the ribs and a keel at the lower 

 part of the whorls. Lord Hood's Island, Mr. Cuming ; south 

 shores of Florida, Sag. 



54. Cerithium planum (pi. clxxxi. f. Ill, 112, 113,), An- 

 ton. Philippi. Abbild. t. 1. f. 18. 



Cerith. testa pupseformi, alba vel castaneo fasciata, spiraliter stri- 

 ata; anfractibus numerosis, rectis, longitudinaliter forte plicatis; 

 apice livido ; ultimo anfraetu ad basin spiraliter unicarinato, exca- 

 vato ; canali recto ; apertura subtrigona. 



The numerous plicated whorls are straight-sided, the last being 

 girt with a spiral ridge, under which it is excavated. The canal 

 is straight, and nearly closed. Philippines, H. Cuming. 



55. Cerithium salebrosum (pi. clxxxi. f. 114, 115), Nobis. 

 Cerith. testa elongato-turrita, scabrosa, alba, nonnunquam fusco 



variegata ; anfractibus pliciferis et granulatim costatis, ad suturam 

 clevatis, ultimo inferne bicarinato ; canali obliquo. 



The sculpture resembles that of C. asperum in the Vertagtis 

 group ; it is rough and rasp-like. The whorls are elevated near 

 the sutures, the last having two beaded keels. Ilab. Lord Hood's 

 Island. 



56. Cerithium balteatum (pi. clxxxi. f. 116, 117), Pki- 

 Vuppi, Abbild. t. 1. f. 10. 



Cerith. testa fusiformi, turrita, alba, rubro vel fusco fasciata, 



