311 
when extended by numerous light-coloured lines; tentacles black ; 
bottom of foot and mantle brown. Motions slow and timid. 
Hab. Oahu. 
ACHATINELLA Masrterst (var. from Molokai). Animal longer 
than the shell; of a light flesh-colour, covered with minute granula- 
tions, tipped with carmine; tentacles dark brown or black. 
This animal is the most beautiful of the genus. Motions bold and 
lively. Lives on the Olova, or native hemp, a large shrub. A. 
rubens is found only on the ground. 
ACHATINELLA PERDIX, Reeve. An arboreal species, often sini- 
stral; inhabits West Mani. 4. Adamsi is usually found on the 
ground ; only a single specimen out of five hundred is sinistral, and 
this shows a greater variation from perdix than the dextral shells ; 
six or seven varieties of perdix do not in any way identify the two 
species. 
ACHATINELLA Pict, Mighels. Animal densely black ; tentacles 
long, slate-coloured ; mantle and foot brownish-black. 
Hab. Mani. 
ACHATINELLA TETRAO, Nob. Animal tessellated above with 
brown and white; mantle dirty yellow; bottom of foot of same 
colour, margined with white. Tentacles light brown. 
Hab. Ranai. (Not published.) 
AcuHaTINELLA HELENA, Nob., is extremely limited in its locality, 
which has been twice carefully searched by myself, without dis- 
covering larger specimens, dead or alive, that approach it in form. 
Several of the specimens contained the young in the oviducts. 
ACHATINELLA PHYSA, Nob. No opportunity has occurred for 
examining the animal, but it is probably adult. 
ACHATINELLA viRGULATA, Mighels. Animal, including mantle 
and tentacles, varying from bluish to yellowish-white. 
ACHATINELLA Reprieup1, Nob. Animal light flesh-colour ; 
mantle dark slate. 
ACHATINELLA TESSELLATA, Nob. Animal very large, dark slate, 
with a black mantle. 
7. DESCRIPTIONS OF TWENTY-SEVEN New SpeciEs OF SHELLS 
FROM THE COLLECTION oF Hucu Cuming, Esa. 
By Artuur Apams, F.L.S. 
1. TrRrTon (CasesTaNa) BoLTENIANUS, A. Adams. T\. testa 
ovato-ventricosa, subumbilicata, cinereo-fulvicante, epidermide 
fusca obtecta ; anfractibus plicato-nodosis, lineis elevatis, cor- 
rugatis, transversim liratis, liris inequalibus ; apertura ovata, 
