87 



37. Emargintjla l^vicostata, A. Adams. E. testd parvd, 

 elUpticd, valde depressd, apice subpostico, retrorsum inclinato, 

 costis IcBvibus, radiantihus {circa 14), ititerstitiis costellis lon- 

 gitudinalibus, et lineis transversis late clathratis ; aperturce 

 margine denticulato, lateribus antich anyustatis, antice valde 

 inciso. 



Hah. 1 Mus. Cuming. 



Subgenus Clypidina, Gray. 



Shell ovate, conical, surface with radiated ribs ; vertex acute, cen- 

 tral, not recurved ; aperture with the margin crenulated ; muscular 

 impression fungiform, anal groove and emargination inclining towards 

 the right anterior margin (in the natural position of shell) . 



1. Clypidina notata, Linn. 



Patella notata, Linn. Chemn. Conch, vol. x. p. 321. Vign. 25. 

 fig. C. D. 



Hub. West Indies. Mus. Cuming. 



2. Clypidina rugosa, Quoy and Gaimard. 

 Emarginula rugosa, Quoy and Gaim. Voy. de I'Astr. p. fig. 

 Emarg. conoida. Reeve, Conch, Syst. pi. 160. fig. 7. 



Hab. Australia. Mus. Cuming. 



3. Clypidina aspera, Gould. 



Emarginula aspera, Gould, Expedition, Shells, p. 12. 

 Hab. Sydney, New South Wales. Mus. Cuming. 



4. Clypidina fungina, Gould. 



Emarginula fungina, Gould, Expedition, Shells, p. 12. 

 Hab. Upolu. Mus. Cuming. 



5. Clypidina sulcifera, A.Adams. C. testd ovali, depresso- 

 conicd, viridescenti, vertice obtuso, ad partem posterior em po- 

 sito; costellis radiantibus, interstitiis haud cequantibus, et striis 

 incrementi ornatis ; basi arcuatd ; aperturce margine cremdato, 

 incisurd haud profunda, sublaterali, intus in canalem productd. 



Hab. 1 Mus. Cuming. 



6. Clypidina rudis, A. Adams. C testd crassd, rudi, albidd, 

 depresso-conicd, costis octo angulatis radiantibus, interstitiis 

 costellis longitudinalibus et lineis concentricis decussatis ; apice 

 subcentrali ; basi arcuato ; aperturce margine crenato, antice 

 sinuato, sinu intus in canalem producto. 



Hab. ? Mus. Cuming. 



7. Clypidina stellata, A. Adams. C. testd soUduld, albidd, 

 elUpticd, depresso-conicd, apice subcentrali, costis elevatis, sub- 

 sjnnulosis, radiantibus; interstitiis costellis et striis crebris 

 decussantibus, exasperatis ; aperturce margine dentato, sinu 

 sublaterali, int^is in canalem apicem versus producto. 



Hab. Australia. Mus. Cuming. 



