744 



declivi, aiitice subacuminato ; hiuula lata^ circumscripta ; uinbo- 

 iiibus iiiflatis, roseis. 



Distinguishable from C. injlata (nobis) only in having an im- 

 pressed line circumscribing the lunula, and being a little more 

 pointed anteriorly. 



Panama. C. B. Adams. 



Sp, 120. C. IRIDESCENS (pi. clxiii. f. 211), Sotverb?/,jim. 



Cyth. testa parva, rotundata, iridescente-alba, concentrice versus 

 marginem ventralem minute elevatim striata ; margine dorsali dc- 

 clivi ; lunula magna, circumscripta!, cardine dente antico magno. 



A small, white, rounded shell, with an iridescent white surface, 

 striated concentrically near the ventral margin. 



Genus CIRCE, from page 650, pi. cxxxix. 



Sp. 5. C. DISPAR (pi. cxxxvii. f. 10, 11 ; var. pi. clxiii. f. 53, 

 54). Two beautiful varieties recently received by Mr. Cuming. 



Sp. 15. C. MINIMA (pi. cxxviii. f. 18-21; var. pi. clxiii. 

 f. 55, 56, 57, 58). Varieties from Puerto Santo. M' Andrew. 



Genus TAPES, from page 699, pi. cli. 



Sp. 8. T. SULCOSA (pi. cxlv. f. 14; var. pi. clxiii. f. 158). 

 A variety in Mr. Gaskoiu^s collection, more ventricose in the 

 centre, and more smooth near the umboes. 



Sp. 10. T. TEXTILE (pi. cxlvi. f. 26-28). One or two spe- 

 cimens exist in Mr. Gaskoin's collection, resembling the variety 

 f. 28, but having a few sulci similar to those in T. rimosa. Is 

 this a new species ? 



Sp. 62. T. DoMBEYi (pi. cl. f. 118; var. pi. clxiii. f. ). 

 If a variety, a very remarkable one, still not sufficiently defined in 

 character to describe as a species. 



Sp. 73. T. EXPALLESCENS (pi. clxiii. f. 161, 162), TUlippi, 

 Abbild. t. 3. f. 5. 



Tap. " testa ovato-oblonga, subeUiptica, corapressa, albida, ad 

 apicem violascente, opaca, transversim irregulariter striata; area 

 omnino imlla; lunula cordata, linea impressa cincta, parum dis- 

 tincta ; margine integerrimo.^' 



A small, white, compressed, smooth shell, from Chili. 



