90 THE LAND MOLLUSCAN FAUNA OF BRITISH NEW GUINEA, 



G. brumeriensis inhabits heavy-limbed trees, preferring those 

 with whitish bark, like Hibiscus tiliaceus and Artocarpits incisus. 

 In its favourite perch, on the under side of the larger boughs, its 

 resemblance to a knot renders it difficult to detect. Animal 

 60 mm. in total length. Shell placed posteriorly. Tentacles 

 slender, tapering, 15 mm. long when fully expanded, bases four 

 mm. apart. Tail flat, pointed. Tentacles jet black ; head and 

 neck ornamented by narrow white longitudinal tubercles on a 

 black ground ; foot everywhere bordered above by a narrow band 

 of intense black, above which is an ill-defined zone of greyish 

 white merging above into black ; sole of foot black at edges, 

 whitish within ; mantle yellowish-white. Mucus unusually dense 

 like that of the arboreal Limaces. Egg small, soft, white, oblong. 



44. G. louisiadensis, Forbes, 1852. 



Illus 11, — Voy. "Rattlesnake," Appen. pi. 1, figs. 8a ; b; 

 Reeve, Conch. Icon. vn. pi. 205, fig. 1449. 



Descr n - Yoy. "Rattlesnake," Appen. p. 376; Mon. Hel. 

 Viv. in. p. 174. 



T y p e in British Museum. 



H a b. — Sudest Island, Louisiades (Forbes, Kowald and Belford). 



45. G. MILLICENTiE, Cox, 1871. 



Illus 11 -— P.Z.S. 1871, pi. 34, figs. 2-2a. 



Descr n --L.c. p. 323 : I.e. 1873, p. 566. 



Type in the Cox Collection. 



H a b. — Louisiades (Cox). 



This is intermediate between louisiadensis and rollsianits, and 

 is probably entitled to rank as a distinct species. The exact 

 island inhabited by it is still unknown. 



46. G. rollsianus, E. A. Smith, 1887. 

 Illus n — Ann. Mag. Nat. Hist. (5), xix. pi. 15, fig. 3. 

 Descr 11 — L.c. (5). xix. 423. 



