112 TESTACEOUS MOLLUSCA. 



compressed, pale pink or flesh-colour, with distant transverse 

 smooth ridges : depressions reddish : anterior slope glabrous and 

 sunken, lunule heart-shaped. 2f. — Indian Ocean. — Senegal? 



V. Cancellata.* Lam. 12. — Reeve, t. 68./'. 2. — V. Cingenda. 

 D.f, 161.— W. t. l.f. 6—Ch. f. 287, 8, 9.—E. t. 268./. 1 — 

 Turt. Biv. t. 10. /. 3. Heart-shaped, with rather distant trans- 

 verse crenulated membranaceous ridges and raised longitudinal 

 rib-like striae in their interstices ; whitish usually tinged with 

 brown or flesh-colour, spotted or indistinctly rayed with dark 

 brown ; lunule dark brown and heart-shaped ; anterior slope in 

 one of the valves smooth, brown or striped with brown. 1. — JV. 

 Indies. 



V. Subrostrata. Lam. 13. — An. Reeve, t. 68. f. 4.? Heart- 

 shaped, broader than the last, slightly beaked anteriorly, cancel- 

 lated by longitudinal strise, and numerous transverse regular equi- 

 distant fine ridges, whitish with rufous or dark spots disposed in 

 rays; lunule heart-shaped: white within, 1±.— W. Indies? 

 E. Indies 1 — Closely allied to Cancellata. 



V. Fasciata.* Donovan, t. I/O.— D. p. 159.— Ck. f. 2/7, 8. 

 — E. t. 276./. 2. — W. t. l.f. 3. Rounded heart-shaped, de- 

 pressed, with smooth thick transverse flattened ribs of nearly uni- 

 form thickness throughout, white with chesnut spots disposed in 

 three rays, entirely reddish-brown, or yellowish either with or with- 

 out three reddish-brown or many red rays ; beaks prominent, lunule 

 ovate, sunken, and very delicately striated ; crenations of the margin 

 very fine. Diameter 1. — Europe, Mediterranean. 



V. Paphia. Lin. 1129.— D. p. 159.— W. t. 7. / 2—Ch. f. 

 274, 5, 6.— E. t. 275./ 5.— Reeve, t. 68./. 1. Triangular heart- 

 shaped, thick, solid, white covered with small rufous zigzag lines, 

 with thick broad transverse ribs which become suddenly narrower 

 on the anterior side ; lunule ovate heart-shaped, sunken, finely 

 striated, and either red or with lettered markings : margin very 

 finely toothed. Diameter \\. — W. Indies. 



V. Thiara. D.p. 162.— Ck. f. 279, 280— Gualt. t. 88. D. 

 —E. t. 275. / 4.— Reeve, t. 67. / 3.— W. t. l.f 8. Triangular 

 ovate, somewhat heart-shaped, depressed, white with usually three 

 reddish-violet rays, with a few distant much elevated transverse 

 membranaceous ridges, which become larger as they approach the 

 anterior side, where they assume the appearance of large scales 

 surrounding the anterior slope : lunule heart-shaped and sunken ; 

 within with a violet posterior stain and the margin finely crenated. 



H • • *2- — E- Indies- 



V. Yatei. Gray in Yates, N. Z. Ovate, rather truncated 

 anteriorly, solid, brown, with rather distant thin concentric laminae, 

 which are higher behind and before, and waved : hinder slope 

 depressed, lozenge-shaped : lunule laminar. — New Zealand. — Like 



