CRENATULA 



Plate II. 



Species 5. (Fig. 5 a and 5 b, Mus. Cuming.) 

 Cebnatula flammea. Cren. testa transverse ovatd, sub- 

 angustd, obliqud, rude convexd, tenui, concentrke stri- 

 ata; rubidd,fasciis acute undaiis pallidis varie distan- 

 tibus pecuUariter oblique Imliginosdjlammatd. 

 The flamed Crenatula. Shell transversely ovate, 

 rather narrow, oblique, rudely convex, thin, concen- 

 trically striated ; red, flamed with variously distant 

 zigzag pale bands, which are peculiarly obliquely 

 freckled. 

 Hab. New Caledonia. 



This interesting species differs materially from the Red 

 Sea type. It is of a rather narrow transverse oval form, 

 convex and thin, and of a dull coppery-red colour, more 

 or less rayed with sharply zigzag bands and lines, which 

 are curiously obliquely freckled across. 



Species 6. (Mus. Cuming.) 



{'benatdla I'ICTa. Cren. testa transversa oblongo-quad- 

 ratd, oblique subundatd, depressd, umbonibus rostratis, 

 concentrice interrupte plicato-striatd ; rufescente-nigrd, 

 radiis linearibus rufo-fuscis profuse plctd. 



The painted Crenatula. Shell transversely oblong- 

 square, obliquely slightly waved, depressed, umboes 

 beaked, concentrically interruptedly plicately striated; 

 reddish-black, profusely painted with red-brown linear 

 rays. 



Ostreapicta, Gmclin, Syst. ^S'at. n. 127. 

 Crenatula picta, Deshayes. 

 Crenatula phasianoptera, Lamarck. 



Eab. Red Sea. 



Except in form, there is no difference between this spe- 

 cies and C. avicularis. The colouring is identical. 



Species 7. (Mus. Cuming.) 



Crenatula folium. Cren. testa transverse rhomboided, 

 oblique cotivexd, utrinque obtuse angulatd; livido-albidd, 

 costis nodosis opaco-albis radiatd. 



The leaf Crenatula. SheU transversely rhomboid, 

 obliquely convex, obtusely angled on each side; livid- 

 white, rayed with opaque-white noduled ribs. 



Gray, Brande's Journal, pi. 2. f. 81. 



Bab. Red Sea. 



Characterized by a pale-Uvid hue, rayed with noduled 



ribs of opaque-white. 



Species 8. (Mus. Cuming.) 



Crenatula Mytiloides. Cren. testa oblique subquad- 

 ratd vel oblowjd, prope umbonea convexd, deinde de- 

 pressd, dense concentrice striata, lavi ; piirpureo-nigrd. 



The Mytilus-like Crenatula. Shell obliquely sub- 

 quadrate or oblong, convex near the umboes, then 

 depressed, densely concentrically striated, smooth; 

 purple-black. 



Lamarck, Ann. du Mus. vol. iii. p. 30. pi. 2. f 3, 4. 



Hab. Red Sea. 



Mostly somewhat distorted in form, jet-black, without 



any indication of rays. 



November, 1858. 



