1861.] M. o. A. L. morch's review of the vermetid^. 165 



21. SiPHONiuM subgranosum, Morch. 



Siphonium costale, " Lam.," Morch, Journ. Conch. 1859, p. 358. 



T. crassiuscula, spiraliter contorta,spira affixa, alba veljlavescens; 

 anfr. teretes vel latere inferno dilatati, longitudinaliter conferte 

 lirulati; lirce subtequales, scope 5-6, prominentiores,lira inediana 

 plerumque valida prominens ; interstitia lirula intercalante ; 

 strice et lamellce irevisshnce, incrementi sigmoidece, regulares, 

 unde lircB subtiliter granulosce et in locis occultis minutissime 

 undulato-squamoscB ; apertura circularis, libera nee soluta, intus 

 Candida. 



Diam. circ. 5 m. 



Operculum superne concavum, laminis confertis concentricis lateris, 

 rufum, zona submediana flava, centra nudo excavato ; in/erne 

 convexum, imp)ressione musculari parva, cruentata, co7icentrice 

 ruguloso-striata, tinea coccinea terminata, centra conico valido 

 prominente, apice obtuso IcBviusculo jiallide Jlavescente ; limbus 

 convexiusculus, nitidus, bicolor, dimidio interna jlavo, externa 

 coccineo. 



Diam. fere 7 m. 



Hab. India orientalis (Tranquebar ?), on Malleus vulgaris (L.), 

 Delphinula distorta (L.), Voluta lapponica (L.), and Margariti- 

 fera injlata (Sebum.). 



Var. a. CARINATA. 



T. affixa, spiraliter torta, umbilico lata, subtilissime conferte liru- 

 lata ; lirce cequales, subtilissime granulosce, carina valida com- 

 pressa mediana, squatnis remotis obsoletis, lira prominula in 

 regione umbilicali. Color flavescens. 



Diam. ap. 8-9 m. (Mus. Reg.). 



Var. jS, varice erectu intus incrassata. 



Var. y, triquetra. 



T. tenuiuscula, decliviter contorta, umbilico clauso lira prominula 

 circumdato, unde anfr. subtriquetris, longitudinaliter pulcher- 

 rime lirulatis et gratiulosis, interstitias lirula intercurrente ; 

 anfr. primi teretes, planorbiformes ; apertura circularis, con- 

 tructa. 



Diam. ap. 3^, diam. anfr. ult. 5-6 m. 



Operculum pallidum unicolor {(lesiccatione verisimiliter), superne 

 laminis solutis concentricis, unde uti duplicatnm, limbo obscuro, 

 centra infundibuliformifundo excavato ; inferne mammilla va- 

 lida, conica, prominente acutiuscida. 



Diam 3^ m. 



Several specimens on an Avicula resembling A. cegyptiaca, Chemn. 

 xi. f. 20 19, but posteriorly deeply inflected. 



This species is not very unlike V. costalis, Chenu, t. 10. f. 6 ; but 

 I have never seen any specimen of that size with such broad grooves, 

 nor with a protracted last whorl. 



22. Siphonium cariniferum. Gray, 1843. 



Vermetus cariniferus. Gray, Dieffenbach, New Zealand, p. 242. 



