234 TROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



ON A COLLECTION OF LAND-SHELLS MADE BY MR. I. KUBARY IN 

 GERMAN NEW GUINEA. 



By 0. P. von Mollendorff, Ph.D. 



Head January Wth, 1894. 

 PLATE XV. 



The material for the present memoir Avas furnished hy Mr. I. Kuhary, 

 well known for his ethnoh^gical and zoological researches in the 

 Caroline and other islands of the Pacific region. Most of the shells 

 were collected in the neighbourhood of the German colonial station of 

 Constantinhafen, situated in Astrolabe Bay, Kaiser Wilhelms Land ; 

 some came from the hills at the foot of the Finisterre Mountains. 

 Small as the collection is, it contains some interesting novelties, and 

 confirms entirely Mr. Hedley's view ^ that the molluscan fauna of 2s^ew 

 Guinea is essentially Malayan. To this theory I consider the discovery 

 of a true Cyclophorus lends very important support. 



1. Xesta citeina, Linn. 



Yar. apicata, Mlldif. — Anfr. apicalibus taenia angusta castanea turn 

 evanescente omatis. 



All my examples from the neighbourhood of Constantinhafen are 

 nearly uniformly yellow, or orange yellow, becoming somewhat darker 

 towards the aperture, and showing a narrow brown band on the apical 

 whorls only. The same form, which seems to be a good local variety, 

 I received through Mr. B. Strubell, from the island of Djamna. 



2. Ehysota (Hemiplecta) Achilles, Braz. 



Brazier, Proc. Linn. Soc. New South Wales, x. p. 842; Tapp.-Can. 

 N. Guin. suppl. 1886, p. 39. 



Maclay Coast (Brazier), Tombul, near Constantinhafen, at an 

 altitude of 600 meters. 



Belated to E. dorice, Tapp.-Can., but easily distinguished by the 

 open umbilicus. Both species belong to the group of H. Ifumphrei/siana, 

 Lea. 



3. Planispira (Ceistigibba) Papuana, n.sp. PI. XV. Figs. 1 and la. 

 Testa sat aperte umbilicata, subdiscoidea, levissime striatula, cuticula 



tenuissima, opace obducta, quasi pruinosa, pallide flavescens, interdum 

 taenia supraperipherica fusca ornata. Spira plana, baud prominula, 

 sursum rosacia. Anfr. 4J, convexiusculi, sutura A-alde impressa 

 discreti, ultimus ad periphcriam indistincte subangulatus, basi sat 

 giliber, pone aperturam modice constrictus, ante stricturam indistincte 

 cristatus, timi subito deflexus, Apertura maxime obliqua, cordiformis, 

 modice excisa, peristoma superne modice expansum, basi refiexiusculum 

 marginibus convergentibus, rosaceum. Diam. maj. 16-19, alt. 

 8-9-5 mm. 



Forma Jlavina : unicolor flava, peristoma album. 



> Proc. Linn. Soc. New South Wales, ser. II. vol. vi. (1891), p. 693. 



