P A i\ P iE A. 



■"PPC 



(Mus. Brit.) 



PaN(i1'.EA aUsXELLATA. Fwi. tCStd OVato-olloli(jd, flllvd. 



tenitiusculd, utrinque pauld hianti ; latere postico 

 la;ri(jalo, subrostrato, depresso, suharcuato, margine 

 dor.<(di depresso, concavo, termino angusto, rotunda, 

 margine rcntrali snrsum acclivi ; medio convcxo, 

 marjine ventrali rcctiuscido ; latere antico injlalo, 

 rvgis concentricis et sti-iis radiuli.-' cancellato, ad 

 terminum rotundo. 



The cancellated Panomca. Shell ovatc-oblong, fulvous, 

 rather thin, a little gaping at both ends ; posterior 

 side smooth, subrostrate, depressed, slightly 

 arched, witli the dorsal margin depressed, con- 

 cave, end narrow, rounded, ventral margin sloped 

 upwards; middle convex, ventral margin rather 

 straight ; anterior side inflated, cancellated with 

 concentric wrinkles and radiating stria;, rounded 

 at the end. 



Sowerby. 



Ilab. Australia. 



This shell gapes much less than the other species, 

 and is remarkable fur the sculpture of its anterior 



side, which has regular concentric 

 radiating stria;. 



Species 



(Mus. Brit.) 



subdom 

 iigatd ; latere pofi 



i'ANOr^EA GENEIKSA. Pail 



fon/ii, crassd, laminaliiu 

 breri, subquadrato, lata, ad terminum latissimr 

 Inuiiti, tnmcato, medio planulato, margine ventrali 

 rectnisculu ; latere antico subtrigono vel snbaru- 

 minatim rotundo. 



The GENEROUS Panop^a. Shell broad, short, rather 

 wedge-shaped, thick, lamiuately wrinkled ; pos- 

 terior side short, subquadrate, broad, very widely- 

 gaping, and truncated at the end; middle Hattish. 

 ventral margin rather straight ; anterior side sul)- 

 trigonal, or subacumiuately rounded. 



Gould. Shells of United States Expedition? MS. 

 Mus. Brit. 



riab. ? 



Remarkable for its almost trigonal form, and verv 

 broad posterior truncation and wide gape. 



February. 187o. 



