223 
nucleus and well marked incremental lines, the outher edge bearing a slight projec- 
tion with fits into the angle of the peripheral keel.“ — 
Aufenthalt im See von Lanao auf Mindanao. — Abbildung und Beschreibung 
nach Bartsch. 
Der Autor vergleicht diese Art mit der tertiären Yivipara vukotinovici 
aus dem Slavonischen Neogen. Er sagt aber auch: „Occasionally tliere appear one 
or more very slight spiral lirations on the surface of the spire; these, however, are 
not constant, even on the same Shell, and therefore unimportant in the specific diag- 
nosis.“ Gerade diese Spiralskulptur scheint mir aber sehr wichtig, und deutet auf 
die Zugehörigkeit zur Gruppe der Yivipara costata, zu welcher ja die nachfol- 
gende Unterart noch ausgesprochener hinüber führt. Meiner Ansicht nach gehören 
die sämmtlichen , von Bartsch aufgestellten neuen Yivipariden von den Philippinen 
zum Formenkreise der Yivipara costata. — 
113. Vivipara mearnsi misamisensis Bartsch. 
Taf. 45. Fig. 3. 
Testa exumbilicata, tenuis, ovato-subturrita, distincte striata, pallide olivaceo-fusca strigis 
saturatioribus. Spira erosa. Anfractus 4 superstites liris tribus cariniformibus majoribus 
duabusque minoribus cincti, peripherica fortiore, interstitiis planis; anfractus ultimus ad peri- 
pberiam valde carinatus, dein convexus, confertim spiraliter striatus. Apertura subovata, intus 
alba, nigro limbata; labrum externum tenue, ad carinas subangulatum, cum columellari con- 
cavo rellexiusculo callo crasso albo nigrornarginato super parietem continuo. — Bartsch angl. 
Alt. 31,7, diam. 27,4, dim. apert. 18,5 : 14,9 mm. 
Vivipara Mearnsi misamisensis new subsp. Bartsch, in: Pr. U. St. National 
Museum 1907 vol. 32 p, 143 t. 10 fig. 5. 
„Shell large, tliin, subturreted, light olive green with many narrow dark brown 
bands, whicli coincide with the lines of growth and probably mark resting stages. 
Entire surface marked by rather strong incremental lines. Nuclear whorls wanting. 
Succeeding turns inflated, shouldered at the summit and marked by three prominent 
spiral ridges and two less conspicuous intermediate ones, between the sutures. The 
most strongly developed of these ridges is at the periphery, the next strong deve- 
loped one is located about two-fifths of the distance anterior to the summit, bet- 
ween the summit and the periphery, while the third is about halfway between these 
two keels. Of the two weeker cords, one Stands halfway between the middle and 
