54 Mr. James Cosmo Melvill on 



perfect as regards completion of growth. In size it assimi- 

 lates P. Tissoti (Pet), with which, also abundant on these 

 shores, it has been confounded. It is easily to be differen- 

 tiated, since it does not possess the deep bisulcate transverse 

 grooving of P. Tissoti, nor the revolving raised ridges with 

 small nodules equi-distant thereupon. 



RiCINULA (SiSTRUM) SUBNODULOSA, Sp. 710V. (PI. I, f. 6). 



R. testa turritd, fusiformi, solidd, apice acitto, anfractibiis 

 acta vel ttovein, in medio atigulatis, tranversim sqiiamato- 

 comigatis, Ji/tiino anfractii bino ordine fioduloso, et infra, 

 duobus ininoribiis ordinibus noduloriini succincio, apertura, 

 oblongd lividd, labro extus angulato, intns livido, denticulato, 

 margine cohiviellari recto. 



Hab. Bombay. {Abercronibic, He}'ford.) 



Long. spec. typ. 20 mill. 



Lat. 9-20 „ 



Bearing a little resemblance to the West Indian R. 

 nodulosa (C. B. Adams), but the black rows of nodules stand 

 out more prominently upon a lighter ground, the interstices 

 between which on the last whorl give a semblance of a 

 fascia. The shell is also more elongate than R. nodulosa. 

 One of Mr. Herford's specimens is larger than usual (23 

 mill.), the smallest with lip perfect, only 1 1 mill., but the 

 essential characters are preserved in each. 



RiCINULA (SiSTRUM) KONKANENSIS, Sp. nov. (PI. I, f 5). 



R. testa pyramidato-fusifornii, solidd, livido cinered, apice 

 attejiuato, acuto, anfractibns quinque-sex, longitndinaliter 

 plicato-costatis, transversini 7iigro-nodulosis, inters titiis traiis- 

 versim sqiiamiilosis, apertura ovatd cinered, labro extus 

 viuriciilato, intus denticulate^ margine columellari recto. 



Long. 29 mill. 



Lat. 15 „ 



Hab, Bombay {Blanford, Abercrombie, &c:). 



