108 

 18. Admete limnaeaeformis Smith. 



Testa tenuissima, subdiapbana, laevis, parum nitens, vitreo-alba; anfractus 3, primi duo parvi, 

 convexiusculi, ultimus amplissimus, convexus; autura simplex, aliquanto profunda; apertura ovata, su- 

 perne paululum acuminata, longitudine testae totius circiter 2 | 6 aequans; columella leviter obliqua, vix 

 arcuata, inferne obliqua et subabrupte truncata, supeine callo tenuissimo, super anfractum expanso, 

 labro juncta; labrum simplex, tenue. 

 Long. 2,5, diam. 1,5 Mm. 



Admete (— ?) limnaeaeformis Smith Moll. Kerguelen p. 6 t. 9 fig. 4, 

 — — Tryon Manual p. 85 t. 7 fig. 31. 



Gehäuse ganz dünnschalig, fast durchsichtig, glatt, wenig glänzend, glasartig weiss. 

 Es sind nur drei Umgänge vorhanden, die beiden ersten klein, leicht gewölbt, der letzte 

 sehr gross und stark gewölbt; die Naht ist einfach, ziemlich tief. Die Mündung ist eiför- 

 mig, oben spitz, etwa 3 / 5 des Gehäuses einnehmend; die Spindel ist etwas schief, kaum 

 gebogen, unten schräg und ziemlich plötzlich abgestutzt, oben durch einen sehr dünnen, 

 über die Mündungswand ausgebreiteten Callus mit dem dünnen, einfachen Mundrand ver- 

 bunden. 



Aufenthalt an Kerguelen, in 4—5 Faden Tiefe auf Tang und Polyzoen gefunden. 

 Sie gehört schwerlich zu Admete und ist wahrscheinlich unausgewachsen. 



19- Admete nodosa Verrill et Smith. 



„Shell rather small thick and solid, short, stout, with coarsely ribbed and rudely nodulous, 

 convex whorls. The spire is short and rapidly tapered, with the apex apparently blunt, but eroded 

 in both of our specimens. Whorls apparently 4 — 5, the last 2 are strongly convex with a well im- 

 pressed suture. The last whorl is surrounded by 5 rows of rather large and coarse prominent nodu- 

 les, joined together by low revolving ridges and situated upon about 12 broad, low, rounded or wave 

 like ribs. On the penultimate whorl the ribs are more prominent and continue across the whorl and 

 bear about 3 rows of nodules. The aperture is short, broad- ovate, more acute behind than in front; 

 the canal is very short and broad fiaring, widely opened and twisted a little to the left, but does 

 not cause any interruption or constriction of the outer lip which is regularly avched, forming nearly 

 a semicircle and has a thin fiaring edge, which is strongly thickened a short distance within the 

 aperture, anteriorly the outer lip continues round in a regulär curve and joins the columella without 

 a distinct notch; posteriorly there is a distinct rounded groove within the aperture at the junction of' 

 the lip with the body-whorl; the columella is strongly sinuous and twisted, its anterior margin forma 

 a distinct ridge or fold and another similar fold is situated at about the middle; the inner lip is ex- 

 cavated in the middle and is thickened by a layer of white enamel, which is continuous from the 

 outer lip around to the anterior margin. No operculum. Colour white. — Long. 12, diam. 8 Mm." — 

 Verrill. 



Admete nodosa Verrill Transact. Connect. VI. p. 419 pl. 44 fig. 9. 



Im Tiefwasser vor der Küste von Neuengland gefunden, meiner Ansicht nach wohl 

 besser eine eigene Gattung bildend. 



