192 



122, Rissoa (Alvania) Carpenteri Weinkauff* 



„A. testa parva, aubturrita, rufo-fusca, marginibus apirae rectis; anfr. nucleosis 2 et dimidio, 

 naticoideis , laevibus, tumentibus, apice mamillato; norm. 8 tumidis, suturis impressis; liris angnstis 

 diatantibuB, spiralibus circ. 12 (quarum 4 — 6 in apira monstrantur) et lirulis radiantibus, supra trans- 

 euntibus, haud nodulosia, aecundum interstitia incurvatia, eleganter exsculpta; interstitiis altis qua- 

 dratis, peritremate continuo, subrotundato, acutiore." (Ph. Carpenter). 

 Long. 0,85, diam. 0,04, long, spirae 0,05", 



Alvania retioulata Carpenter Diagn. in Ann. et Mag. Nat. bist. 3 Ser. XIV p. 429 

 idem in Smithsonian Mise. Coli. X. E. p, 7, non Montagu sp. 



Hab. Neeahbai, Vancouver Distr. (Swan). 



123. Rissoa (Alvania) circinata A. Adams. 



Testa conica, eubturbinata', imperforata , maculis minutia fuacia signata, anfractibus 47^ — 5 

 convexis, per longitudinem costatis tranaversinique tenuistriatis instructa; apertura ovata; labrum 

 pau)ulum incrasaatnm — 



Alt. 3, lat. 1,6 Mm. 



Alvania circinata A. Adams in lit. — Dunker Index Moll, mafis Japan, p. 119. 



Hab. ad insulam Sado Japoniae. 



124. Rissoa (Alvania) caelata A- Adams. 



Testa ovato-conica, solidula, subrimata, pallide flava, anfractibua 5 convexiusculis longitudine 

 crässicostatis, transversim tenuiterque atriatis, conapicue sejunctis instructa; apertura ovata. 

 Alt. 2-2,4 Mm. 



Alvania caelata A. Adams in lit. — Dunker Index Mollusc. maris Japan, p. 119. 

 Hab. ad Japoniam. 

 In hac specie, quae praecedenti affinia est, costae in anfractus Ultimi media evanescunt. 



125. Rissoa (Alvania) filosa Ph. Carpenter. 



„A. t. A. Carpenteri indole et colore, haud sculptura simili; multo majore elongata; anfr. 

 nucl. ? . . . (detritis), norm. 4 ; striia parum separatis circ. 18 (quarum circ. 12 in spira monstrantur) 

 cincta; rugulis radiantibus posticia creberrimia, haud expressis, circa peripheriam evanidis; peritremate 

 continuo; columella rufo-purpureo tincta." (Ph. Carpenter). 



Long. 0,13, diam. 0,6, long, spirae 0,9 poll. 



Hab. Neeahbai, Vancouver Distr. (Swan). 



