MoUusca from yew Caledonia, Japan, tCr. 479 



I lab. New Caledonia. 



A small thin shell of very simple form and character. 

 The surface looks smooth, but under the lens it is seen to be 

 closely concentrically striated. 



TelUna rohlini, sp. n. (PI. XIX. fig. IG.) 



Testa transversiin elongata, albo-nitens, concentrice et parum 

 oblique irrftgularitcr sulcata; umhoiics obtusi, vix clcvali, post 

 medium locati ; margo dorsalis anticus leviter arcuatus, oblique 

 declivis, posticus subrccto declivis, brevier; latus anticum 

 rotuudatura, posticum augulatum ; ligameiitum externum, breve. 

 Pagina interna glabra, pallide lutco tiucta ; dens cardinalia iu 

 utraque valvis duo, lateralis elongatis, leviter elevatis. 



Antero-post, 13, umbono-marg. 8 mm. 



Hah. New Caledonia. 



A small white .shining shell resembling T. rhomboiJes 

 (Gaini.) in form, characterized by slightly oblique striae. 



Macoma ctiledonicu, sp. n. (PI. XIX. fig. 13.) 



Testa subtrigona, coniprcssiuscula, tenuis pellucide albida ; utra- 

 que valva coiiceutrieo crebrisulcata ; umboues acutiusculi, fere 

 ccntrali ; margo dorsalis utrinque declivis, ventralis arcuatus ; 

 latus anticum rotundatura, posticum acuminatum. Tagiua 

 interna alba, linea pallii latissime sinuata ; dens cardinalis 

 minutissimis, lateralis nullis, 



Antero-post. 12, umbono-marg. 8 mm. 



Hah. New Caledonia. 



A delicate little shell, elate at the un:ibones, and with tho 

 dorsal margin sloping on each side. Although simple in 

 character, it does not seem to suggest near affinity with any 

 known species. 



Macoma ludifferens, sp. n. (PL XIX. fig. 15.) 



Testa compresse ovalis, tenuis, sordide albida, concentrice irregu- 

 lariter striata, postice obscurissime angulata ; umbones aculi, vix 

 promineus, leviter post medium locati ; margo dorsalis anticus 

 arcuatus, posticus recto-dcclivis, ventralis arcuatus; latus anti- 

 cum rotundatum, posticum breviter truncatum. Pagina interna 

 alba, linea palli.iri latissime sinuata; dens cardinalis in utroque 

 valvoe duo, lateralis nullis. 



Antero-post. 37, umbono-marg. 28 mm. 



Huh. Manila, Philippines. 



In form this sludl somewhat resembles J/./joi///*- (Ilanley), 

 which is also a Philippine species, but it lacks the colour and 

 is not so distinctly concentrically sulcaled. It is still more 



33-* 



