nx 
On the Spalax of the Grecian Archipelago. 315 
This species is chiefly distinguished from H. argenteo- 
cinereus by the greater development of the postorbital pro- 
jections, the greatest breadth across these in a full-grown 
specimen of that species being only 9°6, with interorbital 
breadth 9, as compared with the 12:4, 9°4 of angonicus, 
these measurements being approximately constant through- 
out the series of both forms. The little vertical ridge on 
the occipital plane is present in all three adult specimens 
of angonicus, and in none of the eight available examples 
of argenteo-cinereus. 
Of other species, robustus of Mpika is much larger, 
marungensis, Noack, of Marungu, is separated geographically 
by the locality of robustus, and has its frontal profile more 
as in the Hast African pallidus. 
XXXVII.—The Spalax of the Grecian Archipelago. 
By Oxuprietp Tomas. 
(Published by permission of the Trustees of the British Museum.) 
Tue National Museum owes to Major T. S. Blackwell, 
R.A.M.C., now serving his country in the Island of Lemnos, 
a series of six skulls, three male and three female, of 
the mole-rat (Spalax) of that island, obtained at Mudros 
West, where these “ moles” are said to be very numerous. 
Besides these excellent skulls, the Museum also contains a 
skin and imperfect skull] sent in 1916 from Mudros East by 
Capt. H. M. Warrand, to whom we owe our first knowledge 
of the occurrence of Spalax in the island. 
Oy reference to Mehely’s elaborate Monograph of the 
genus, the Lemnos Spalax would appear to be referable to 
the widely distributed Spalax (Mesospalax) monticola, but 
cannot be identified with any one of the eleven subspecies 
of that animal which he recognizes, and forms a special race, 
which may be called 
Spalax monticola insularis, subsp. n. 
Incisors generally white in front. Molars with coalesced 
roots, about as in S. m. anatolicus. Nasals reaching about 
as far back as the premaxillary processes, their junction 
with the frontals unusually complicated. 
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