GASTEROPODA. 121 



partly contained in the Adsceral cav-ity ; racMs I toothed; uncini 3. The 

 comies inhabit shaUow water, near shore, feeding on zoophytes. 



Cypr^a, L. Qovaj. 

 Etym., Cypris, a name of Venus. 

 Types, C. tigris, C. maiiritiana, PI. VII., fig. 20. 



Shell ventricose, convolute, covered with \ 

 shining enamel ; spire concealed ; aperture I /^ I 

 long and narrow, Tvith a short canal at each ^\ If J 

 end; inner lip crenulated ; outer lip inflected >^''y 

 and crenulated. (Lingual uncird similar). 1 



The young shell has a tliin and sharp 

 outer lip, a prominent spire, and is covered 

 \^-ith a thin epidermis, fig. 75. When fiill- 

 growTi the mantle lobes expand on each side, 

 and deposit a shining enamel over the whole 

 sheD, by which the spii-e is entii-ely concealed. 

 There is usually a line of paler colour which 

 Fig. 70. Cypr<Ba, ^^^^"^^^^ ^^'^^ere the mantle lobes met. Oj- 

 young* ' prcsa amiuhis is used by the Asiatic Islanders 

 to adorn theii- dress, to weight their fishing-nets, and for barter. Fig. 76. 

 Specimens of it were found by Dr. Layard in the ruins of Nimi'oud! ^^''^'"- ^ 

 The money-cowrey (C. moneta) is also a native of the Pacific and Eastern 

 seas; many tons weight of this little sheH are annuaUy imported into this 

 countiy, and again exported for barter with the native tribes of Western 

 Afiica ; in the year 1848 sixty tons of the money-covsTy were imported into 

 Liverpool ; and in 1849 nearly thi-ee hundi-ed tons were brought to the same 

 place, according to the statement of Mr. Archer in the Industrial Exhibition 

 Mr. Adams observed the pteropodous fiy of C. annulm, at Singapore adherino- 

 m masses to the mantle of the parent, or smmming in rapid gvi'ations, or 

 with abrupt jerking movements by means of their cephalic fins. 



Bistr., 150 sp. In all Avarm seas (except E. coast S. America?) but 

 most abundant in those of the old worid. On reefs and under rocks at low 

 water. 



Fossil, 78 sp. Chalk—. India, Brit., France, &c. 

 Suh-genera. Cyprovida, Gray. C. capensis, PI. VIL, fig. 21. Aper- 

 tural plaits continued regularly over the margin of the caui ° 



Luponia, Gray. C. algoensis, PI. VII.,^fig. 22. Inner lip iiTegularlv 

 plaited in front. 



* Fig. 75. Cypraea testudinaria, L., young, China. 



G 



