169 
DESCRIPTION OF ACHATINA MACHACHENSIS, n.sr., FROM 
BASUTOLAND. 
By Enear A. Suita, F.Z.S., etc. 
Read 11th April, 1902. 
TxE specimens about to be described have been presented to the British 
Museum by R. Crawshay, Esq., by whom they were collected on Mount 
Machacha, in Basutoland, at an elevation of about 10,000 feet. I have 
designated this form Achatina Machachensis because a geographical 
name may be of some service to others in the identification of examples 
of this genus from the locality indicated. 
It is the first species recorded from 
Basutoland, and although exhibiting in 
some respects a relationship to the well- 
known A. zebra, it seems, on account of 
its elongate-ovate form, to be worthy of 
specific separation. A. rhabdota of Melvill 
and Ponsonby?’ is very similar as regards 
general form and the style of markings, 
put is described as decussately granulated, 
a feature entirely absent in the present 
species, which, moreover, appears to have 
more convex whorls, presuming that the 
figure of A. rhabdota is accurate, for their 
form is not described in the authors’ 
diagnosis. 
AcHATINA MAcHACHENSIS, n.sp. 
Testa elongato-ovata, mediocriter tenuis, 
sub periostraco tenui nitido flavo alba, 
strigis longitudinalibus arcuatis, rufo-nigris, Achatina Machachensis, 0.sp- 
interdum plus minus undulatis vel bifur- 
catis picta; spira producta, leviter convexa, ad apicem obtusa ; 
anfractus septem, convexiusculi, lineis incrementi obliquis tenuibus 
striati, sutura lineari incrassata, alba, sejuncti, ultimus antice sensim 
descendens ; apertura inverse auriformis, longit. totius  haud equans, 
intus crulescens, sub-margaritacea, strigis nigris translucentibus ; 
columella parum arcuata, antice albida, oblique breviter truncata, 
superne callo tenui ceerulescente labro juncta. 
Long. 58, lat. 31 mm.; apertura long. 28, lat. 16 mm. 
Exemplum alterum, long. 52, lat. 27mm.; apertura long. 25, 
lat. 15 mm. 
Besides in the characters already referred to, this species also differs 
from A. rhabdvta in the form of the aperture. A. Crawfordi, Morelet, 
from Port Elizabeth, is also very similar in general outline, but is 
somewhat thinner, finely granulated, and with lighter - coloured 
markings. 
! Ann. Mag. Nat. Hist., 1898, p. 29, pl. viii, fig. 11. 
