170 C. A. Westerhmd, Synopsis Molluscorum Extramarinor. Scandin. 



elongatum, medianum, recurvatulum attenuata, margo dor- 

 salis elongato-arcuatus, ventralis late eurvatus; umbones 

 depressi. Long. 160, alt. 80 mm. (I. 123, a. 65, cr. 36 

 mm.: Locard). 



Hah. Dania in Sjselland (Classens Have) et Lolland (Lille 

 Kjobelov). 



A. seneolina Drt. (Journ. Conch. 1893). C. oblonga, parum con- 

 vexa, tenuis, fragilis, extus intusque sulcato-costataj oliva- 

 cea, postice in rostrum attenuato-decurvatum vel trunca- 

 tum, inframedianum producta; margo superior et inferior 

 subparalleli, anteriore rotundato; umbones plicatuli, rubi- 

 ginosi; crista humilis; impressiones internee superficiales; 

 margarita coeruleo-seneola (infra coerulea, superne maculis 

 ssepiss. maximis pallide hepaticis vel seneis), nitida. Long. 

 72—84, alt. 37—46, cr. 22—26 mm. — (West. in Nach- 

 richtsbL MaL Ges. 1894). 

 Hah. Suecia in Skane (in Ringsjon ad^ ostium amnis 



Ronnehohnsan : Hj. W.). 



A. charpyi (Dup.) Rgt. (Moll. Aceph. I, 1881). C. elongato-ovata, 

 non obhqua, rugoso-striata et sulcata, sa'pe ad maximam 

 partem erosa, fusco-olivacea, v. rufescens, forte et regula- 

 riter ventricosa, valvulis non hiantibus, antice rotundato- 

 declivis, postice 2^2 longior, in rostrum perobtusum rae- 

 dianum producta; margo superior et inferior subsequaliter 

 arcuatuh, subparalleli. Long. 130, alt. 67, cr. 42 mm. 

 Hah. Dania ad Kjobenhavn (in Fredriksbergs Have: H. L.). 



A. ventricosa C. Pfr. (Naturg. 11. 1825). C. elongato-oblonga, 

 sat obhqua, fusco-virescens, zonis concentricis viridibus v. 

 brunneis, valde ventricosa, antice rotundato-declivis, po- 

 stice 2Y2 longior, in rostrum obtusum medianum producta; 

 margo superior subrectus, posterior concavo-descendens, 

 inferior subrectus, postice magis quam antice arcuatus; 

 margarita coerulescens. Long. 137 — 167, alt. 68 — 84, cr. 

 45 — 58 mm. 

 Hah. Dania ad Hirtshal (H. L.). 



