MODIOLA.— Plate X. 



margin, radiately densely flexuously ridged, gibbous 

 in the middle, uuiboes prominent ; greenish-olive, 

 obscurely dark-banded. 



Lamakck, Anim. sans vert, vol.ix. 



An elougately fan-shaped shell, agreeably coloured with 



a livid-olive hue tinged with shining chestimt, the whole 



surface being flexuously ridged. 



Species 62. (Fig. 75, Mus. Cuming.) 



MouioLA FoRTUNEi. Mod. testa panuld, ovato-oblongd, 

 sabtngond, utrinque obtuse carinald, concentrice ru- 

 (joso-striatd ; superne violaeed, inferne albidd, epider- 

 mids virente indutd. 



FortUiNe's Modiola. Shell rather small, ovately oblong, 

 somewhat triangular, obtusely keeled on both sides, 

 concentrically roughly striated ; violet at the upper 

 part, whitish below, covered with a greenish epi- 

 dermis. 



Volsella Fortiinei, Dunker, Pro. Zool. Soc. 185(5, p. 361. 



Hab. China Sea ; Fortune. 



Of neat symmetrical form, richly coloured on the upper 



part, pale at the lower. 



Species 63. (Fig. 76, Mus. Cuming.) 

 Modiola phaseolina. Mod. testa pyrifonrii-ovatd, tu- 



midiusculd, corned, concentrice striata, epidermide sub- 



spinosd indutd. 

 The pease Modiola. Shell pyriformly ovate, rather 



swoUen, horny, concentrically striated, covered with 



a somewhat spinous epidermis. 

 Philippi, Enum. Mol. Sicil. vol. ii, p. 51. f li. 

 Hab. West coast of Scotland ; M'Andrew. 



A spinously beaded homy shell, originally observed by 

 Philippi in Sicily in a fossil state, and lately found living 

 on the north-east and west coasts of Scotland. 



Species 6i. (Fig. 77, Mus. Cuming.) 

 Modiola flavida. Mod. testa oblongd, tenui, injlatd, 

 Utiek concentricis tenuibus elecatis sculptd; Jlavidd, 

 lined ab umbonibus ad basin oblique decurrente colore 

 pallidiore signatd ; umbonibus tmnidis, margine ven- 

 trali postice sinuatd. 

 The yellowish Modiola. Shell oblong, thin, inflated, 

 sculptured with fine raised concentric lines ; yellow- 

 ish, with a line running down obliquely from the 

 uniboes to the base marked with a paler colour ; 

 umboes swollen, ventral margin posteriorly sinuated. 

 yotsellajlavida, Dunker, Pro. Zool. Soc. 1856, p. 364. 

 Ilai. Bay of Manila ; Cuming. 



A light inflated shell of yellowish-chestnut colour, deli- 

 cately sculptured with raised concentric lines. 



