410 
DESCRIPTION OF MARGINELLA LATERITIA, n.sr.. FROM THE 
ANDAMAN ISLANDS. 
By J. C. Mrtvitt, M.A., F.L.S., and E. R. Syxes, B.A., F.L.S. 
Read 12th June, 1908. 
Marcinetta (GLABELLA) LATERITIA, 0.Sp. 
M. testa ovato-fusiformi, levissima, nitidiuscula, solida, spira conica, 
obtusa, anfractibus 5, quorum 23 vel 3 subhyalini, apicales, ceteris 
perlevibus, albo-cinereis, anfractu ultimo apud medium late et pallide 
rufozonato, omnibus spiraliter notulatis et concinne castaneo-maculatis, 
apertura angusta, oblonga, labro crassiusculo, nitido, hie ille castaneo- 
zonulato, intus multidenticulato, columella quadriplicata. Long. 6, 
at. 3°5 mm. 
Marginella lateritia, n.sp. 
FTab.— AQ insulas Andamanenses. 
This particularly interesting little species has no immediate ally in 
the genus, so far as its pattern of ornamental painting is concerned, 
if we except M. picturata, Nevill, from Mauritius. That, however, is 
a smaller shell still. The neatly arranged spiral zones and dotting, 
producing a fanciful resemblance to layers of masonry, suggested the 
trivial name. 
Three specimens. Type in coll. E. R. Sykes. 
