286 HELIX-PLANISPIRA. 



tal, ovate ; peristome subthickened, expanded above, reflexed below, 

 the columella dilated, toothless. Alt. 11, greater diam. 24, lesser 

 19 mill. 



Ternate group of the Moluccas; Port Dorey, New Guinea. 



H. loxotrojms PFR. Zeitschr. f. Mai. 1850, p. 82 ; Conchyl. Cab. 

 p. 351, t. 135, f. 3, 4; Monogr. iii, p. 226. REEVE, f. 1392. TAP- 

 PAKONE CANEFRI, Ann. Mus. Civ. Geneva, xix, p. 183. VON 

 MARTENS, Preuss. Exped. nach Ostas., Laudschn. p. 304, t. 16, f. 

 3, 2, with numerous varieties (see text). H. lorquini PFR. Mai. Bl. 

 1865, p. 122 ; Novit. Conch, p. 273, t. 67, f. 14, 15 ; Mon. v, p. 345. 



I have not seen this species, my description being compiled from 

 Martens and Pfeiffer. Martens describes the animal : Head and 

 foot black ; tentacles short ; jaw with weak ribs. 



The greenish ground-color and lusterless surface separate this 

 form from others. It is similar to H. zonalis in the band arrange- 

 ment. The specimens from the island of Dodinga have the band- 

 formula 02(34)5, or rarely 0(234)5 ; those from Batjan 00045 ; from 

 Mareh 02345 ; and from Kajoa 02340. The following forms have 

 received names : 



Form Bernsteinii Martens. Large, rather conical, isabelline- 

 yellow, with a white sutural zone, a moderately wide peripheral, 

 and a wide basal zone of blackish-brown. Alt. 19, diam. 31 mill. 



Form laticlavia Martens (pi. 46, figs. 62, 64, 68.) Moderate 

 sized ; depressed-conic, olivaceous, with a wide white sutural zone, 

 upper bands distinct ; suture descending in front into the space be- 

 tween the lowest and next upper band. Alt. 13-14, diam. 25 mill. 



Dodingo. 



Form angusticlavia Mart. (pi. 46, fig. 63.) Small ; quite conical 

 brownish-greenish, with a narrow whitish sutural zone, upper bands 

 obsolete or none ; suture descending in front, next to the lower band. 



Alt. 12-13, diam. 21* mill. Batjan. 



Form pluricincta Mart. Small, depressed conical, pale greenish- 

 yellow, sutural white band rather wide, upper, peripheral and basal 

 bands equal, a little wide, intense' chestnut. 



Alt. 12-13, diam. 20-22 mill. 



Var. LORQUINI Pfr. PL 57, figs. 2, 3. 



Shell thinner than in loxotrojris, spire lower, whorls flatter, and 

 peristome much more broadly expanded. 



