new Species of Mollusca. 1G9 



scabrosa induta, concentrice creberrime scalpta ; margo dorsalis 

 leviter arcuatus, postice rotundatus, ventralis lcViter incurvus ; 

 unibones obtusi, subterminali. 



I lab. Iyo, Japan (Hirase). 



Cardium (Serripes) notabile, sp. n. (PL X. fig. 9.) 



Testa iuflata, sordide albida, epiderruide pallida tenuiter induta, 

 concentrice creberrime striata, utrinque breviter radiatim sulcata ; 

 margo dorsalis posticus late arcuatus, anticus brevis, valde 

 declivis, ventralis suboblique arcuatus ; latus anticum rotundatum, 

 posticum late arcuatum ; umbones obtusi, valde incurvati, ante 

 medium locati. 



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



Hab. Wakasa, Japan (Hirase). 



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

 is of a much more tumid form than Serripes gronlandicus. 



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



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

 rime oblique striata, postice acute angulata, concentrice filo- 

 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 utraque valvar 

 du'o, lateralis nullis. 



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



Hab. Oshima, Japan. 



Distinguished by the very fine oblique striae nearly 

 covering the surface of both valves. 



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



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

 tilissime striata, postico leviter hiata; inargo dorsalis anticus 

 elongatus, arcuatus ; posticus leviter declivis, rectiuscula : ven- 

 tralis longus, antice rotundatus, postice leviter ascendens ; 

 umbones vix elevati, post medium locati ; dens cardinalis iu 

 utraque valvas duo, lateralis nullis. 



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



Hab. Philippines (?). 



The shell is of simple character, resembling in form a 

 species of Anntina. The surface is apparently smooth, but 

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

 and it has an iridescent lustre. 



Ann. tfc Mag. N. Hist. Ser. 8. Vol. xvi. 13 



