new Species of MoUusca. 1G9 



scabrosa induta, coucentrice crcberrime scaljita ; margo cTorsalis 

 leviter arcuatus, postice rotuudatus, ventralit> Itviter iiicurvus ; 

 umbones obtusi, subterminali. 



Hah. lyo, Japan [Hirase). 



Cardium {Stri'ipes) notahile, sp. n. (PL X. fig. 9.) 



Testa inflata, sordide albida, epidermide pallida teiiuiter iuduta, 

 coucentrice crebenime striata, utrinque breviter ladiatim sulcata ; 

 margo dorsalis posticus late arcuatus, anticus brevis, vaide 

 declivis, ventralis suboblique arcuatus ; latus anticum rotundatum, 

 posticum late arcuatum ; umt)ones obtusi, valde incurvati, ante 

 medium locati. 



Antero-post. 80, umbono-marg. 77 mm. 



Hah. Wakasa, Japan (^Hirase). 



I liave as yet only seen one specimen of this species, which 

 is of a much more tumid form than Serripes grotdandicua. 



Macoma transcalpta, sp. n. (PI. X. fig. 11.) 



Testa oblongo-subovalis, tenuicula, leviter comprossa, albida, creber- 

 rime oblique striata, postice acute angulata, concentrice iilo- 

 striata ; margo dorsalis anticus elongatus, levissime arcuatus, 

 posticus brevis valde declivis ; margo ventralis arcuatus ; latus 

 anticum rotundatum, posticum obtuse angulatum ; umbones 

 minuti, post medium locati ; dens cardinalis in utra([ue valvte 

 duo, lateralis nullis. 



Antero-post. 25, umbono-marg. 15 mm. 



Hah. Oshiraa, Japan. 



Distinguished by the very fine oblique stria; nearly 

 covering the surface of both valves. 



Macoma anatinoides, sp. n. (PI. X. fig. 12.) 



Testa oblonga, tenuicula, albida, iridescens, luevis, concentrice sub- 

 tilissime striata, postice leviter hiata ; margo dorsalis anticus 

 elongatus, arcuatus ; posticus leviter declivis, recti iiscula ; ven- 

 tralis longus, antice rotundatus, postice leviter ascendens ; 

 umbones vix elevati, post medium locati ; dens cardinalis in 

 utraque valviB duo, lateralis nullis. 



Antero-post. 28, umbono-marg. 15 mm. 



Hah. Philippines (?). 



Tiie shell is of simple character, resembling in form a 

 species of Anatina. 'Ihe surface is apparently smooth, but 

 under the lens it is seen to be closely concentrically striated, 

 and it has an iridescent lustre. 



Ann. d!; Mag. N. Uitit. Ser. 8. Vol. xvi. l.'i 



