LUTRAKIA. 



Plate II. 



Species 5. (Mus. Cuming.) 



LuTRAKiA CDRTA. Lutr. testd oblongo-ovatd, curia, siihob- 

 liqud, solidiiisctdd, ad latera late hiante, latere jjostico 

 sttbattenuato-rotundato, antico abritpte trwncato ; con- 

 centrice ruyoso-striatd, alba. 



The short Lutraria. Shell oblong-ovate, short, some- 

 what oblique, rather solid, broadly gaping at the 

 sides, posterior side somewhat attenuately rouuded, 

 anterior abruptly truncated ; concentrically roughly 

 striated, white. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab. Philippine Islands. 



This species has very much the aspect of an Anatlna, 

 being much truncated at the anterior side, and more than 

 usually gaping. 



Species 6. (Mus. Cuming.) 



Lutraria aecuata. Lutr. testd arcuato-oblongd, sub- 

 obliqud ; lateribus rotundatis, late Mantibus, po.^tico 

 attenuatiore ; concentrice tenuissime striata, subpellu- 

 cido-albd, epidermide eximid corned fulvescente-cinered 



The arched Lutraria. i Shell arcuately oblong, rather 

 obHque ; sides rounded, widely gaping, the posterior 

 the more attenuated ; concentrically very finely stri- 

 ated, subtranspareut white, covered with a deMcate 

 Ught fulvous-ash horny epidermis. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab, Philippine Islands. 



Beautifully characterized by its elegantly arched growth 

 and delicate texture and epidermis. 



Species 7. (Mus. Cuming.) 

 Lutraria oblonga. Lutr. testd elongato-oblongd, ven- 



tricosd, subarcwatd, latere postico attemtato-rotundato, 

 antico latiore, aperte hiante; sordide alba, rugoso- 

 striatd, epidermide cinereo-fuscd indutd. 



The oblong Lutraria. Shell elongately oblong, ven- 

 tricose, slightly arched, posterior side attenuately 

 rounded, anterior broader, openly gaping; dirty- 

 white, roughly striated, covered with an ash-brown 

 epidermis. 



Turton, Conch. Dith. Ins. Brit. p. 64. pi. 5. f. 6. 

 Mya oblonga, GmeUn. 

 Chama magna. Da Costa. 

 Mactra hians, DDlwyn. 

 Lutraria Solenoides, Lamarck. 

 Lutricola Solenoides, De Blainville. 



Hab. European Seas. 



Of rough slightly arched gi-owth, ventricose and atte- 

 nuately rounded at the posterior side. 



Species 8. (Mus. Cuming.) 



Lutraria dissimilis. Lutr. testd oblongd, redd, cras- 

 siusculd, rugosd ; lateribus rotundatis, antico sziblate 

 hiante, postico attenuatiore ; concentrice striatd, striis 

 ritgosis et irregularibns, incarnato-albd, epidermide 

 sordide fused corrugatd indutd. 



The dissimilar Lutraria. Shell oblong, straight, 

 rather thick, rough ; sides rounded, anterior rather 

 widely gaping, posterior the more attenuated ; con- 

 centrically striated, striae rough and in-egular, flesh- 

 white, covered with a dirty-brown shrivelled epi- 

 dermis. 



Deshayes, Pro. Zool. Soc. 1854. 



Hab. ? 



A species of very distinctive character, roughly striated 

 with a peculiarly shrivelled epidermis. Locality un- 

 known. 



August, 1854. 



