C AUDIT A. 



Plate IV. 



Species 13. (Mus. Cuming.) 



.bdita distorta. Card, testa elongato-ovata, valdc 

 gibbosd, peculiariter distorta, luteold; costis duode- 

 cim aut plurimis, subsquamosis, inferioribus planius- 

 culis. 



ie distorted Cardita. Shell elongate!}' oval, very- 

 gibbous, peculiarly distorted, yellowish; ribs twelve 

 or more in number, a little scaly, lower ribs rather 

 flat. 



iEVE, Pro. Zool. Soc, 184.3. 



lb. Red Sea ; Ruppell. 



There are several specimens of this curious species 

 Mr. Cuming's collection, all singularly distorted in 

 e same manner. 



Species 14. (Mus. Metcalfe.) 



lrdita squamigera. Card, testd ovato-rotundatd, sub- 

 oblique cordatd, fulvd, roseo tinctd; costis octodecim 

 elevatis, squamosis ; squamis pralongis, suberectis, 

 anticis brevioribns ; lunula cordiformi, planulatd. 



be scaly Cardita. Shell ovately rounded, rather 

 obliquely heart-shaped, yellowish-brown, stained 

 with rose-colour ; ribs eighteen in number, elevated, 

 scaly ; scales very long, rather erect, anterior ones 

 the shorter ; lunule flat and heart-shaped. 



eshayes, Mag. de Zool... 1831, pi. 10. 



ab. ? 



A small species, remarkable on account of the length 

 id multiplicity of the scales. 



Species 15. (Mus. Cuming.) 



ardita trapezia. Card, testa trapezid, albidd, nigro 

 sparsim maculatd ; costis octodecim, subtiliter crenu- 

 latis; lunula subampld ; ligamenti ared depresso- 

 pland. 



'he trapeziform Cardita. Shell trapeziform, whitish, 

 sparingly spotted with black ; ribs eighteen in 

 number, finely crenulated ; lunule rather large ; li- 

 gamentary area depressly flat. 



Sruguiere, Enc. Meth. vers, vol. i. part 2. p. 407. 



.amarck, Anim. sans vert., vol. vi. p. 429. 

 Chama trapezia, Miiller. 

 Chama muricata ? Poli. 



Hab. Coast of Sicily ; Philippi. 



This little shell may always be recognised by its true 

 trapeziform shape. 



Species 16. (Mus. Hanley.) 



Cardita Senegalensis. Card, testa oblonga, elongato- 

 ovata, fulvd, epidermide fused indutd ; costis quin- 

 decim sedecimve, squamosis, squamis incumbentibus. 



The Senegal Cardita. Shell elongately oval, yellow- 

 ish, covered with a brown epidermis ; ribs fifteen 

 or sixteen in number, scaly, scales lying one over 

 the other. 



Reeve, Pro. Zool. Soc, 1843. 

 Lejeson ? Adanson. 



Hab. Senegal. 



This shell, which I know to have been brought from 

 Senegal by M. Rang, approaches nearer to the figure 

 and description of Le je'son of Adanson than any that 

 has been hitherto assigned to it. 



Species 17. (Mus. Cuming.) 



Cardita aculeata. Card, testd trapezio-oblongd, postice 

 rotundatd, alba, rosaceo inter dtim pallidi tinctd; costis 

 viginti, compressis, angust is, elevatis, multisquamosis ; 

 squamis erectis, aculeiformibus ; lunula ampld. 



The prickly Cardita. Shell trapeziformly oblong, 

 rounded posteriorly ; white, sometimes palely stain- 

 ed with a rose-tint ; ribs twenty in number, com- 

 pressed, narrow, raised and covered with a number 

 of erect prickle-like scales; lunule large. 



Philippi, Enum. Moll. Sicil., p. 54. pi. 4. f. IS. 



Hab. Mediterranean near Palermo ; Philippi. 



This is a much more gibbous and solid shell than the 

 C. squamigera, to which it is nearly allied, and the 

 spines are more erect and prickle-like. It is generally 

 found with one or more small pieces of the Cyathina 

 turbinata (white coral) attached to it. 



Species 18. (Mus. Cuming.) 



Cardita muricata. Card, testd ovato-obloiujd, luteold, 

 fusco nigrove maculatd, epidermide olivaceo-viridi in- 

 dutd ; costis octodecim, in medio angulutis, muricato- 



July 1843. 



