402 Records of the Indian Museum. [Vor 2a 
(5 anterior and 4 posterior) as shown by Westwood for M. mandu- 
catoy; the double curve of the fang is absent here and, lastly, the 
maxillary process of the palp has sharp bendings and is not rounded 
as in the other species. 
Myrmarachne uniseriatus, sp. nov. () 
(Plate xxxii, figs. 6a-b.) 
This small spider belongs to a new species and was collected 
by Prof. Ramunni Menon at Madras. 
Measurements. 
Total length 4°2 mm. 
Cephalothorax: length 2 mm.; width I'r mm. 
Falces 0°8 mm. 
Legs 4123. 
The cephalothorax is moderately high; the cephalic part is 
limited behind by a shallow transverse depression and not by a 
sharp constriction as in most other species. Laterally there is a 
crescentic groove to separate the cephalic from the thoracic part. 
The anterior thoracic part is at about the same level as the cepha- 
lic, behind which the thorax slants posteriorly. Asin most species 
the thoracic part narrows behind. The quadrangle of eyes is more 
than one-third wider than long and occupies two-fifths of the 
cephalothorax. ‘The anterior eyes are close together in a recurved 
row, the middle being twice as large as the lateral. The 2nd row 
is nearer the first than the third row. The dorsal eyes are of the 
same size as the lateral. 
The characteristic feature which distinguishes it readily from 
other species is that it has only one row of Io teeth on the 
ventral side of the falces. These teeth are situated quite towards 
the inner margin and therefore belong to the ‘‘ marge supérieure ”’ ; 
the teeth on the inferior margin are thus absent. The teeth present 
are larger towards the apex and smaller towards the base of the fang. 
It will be seen that in most of the species, as for example M. /aetus, 
M. himalayensis and M. ramunnt, the teeth on the inferior margin, 
or outer row, are smaller, both in number and size, than those of 
the superior margin. Inthe present species we have reached an 
extreme of this condition of the reduction of teeth on the ‘‘ marge 
inférieure.’’ Besides, the fang has an extra tooth on its under- 
side somewhere about the middle of its length (pl. xxxii, fig. 6a). 
‘The lip is longer than wide and there are 2 rows of 4 spines each on 
the under side of the rst tibia, and 2 rows of 2 spines on the 2nd 
tibia. The abdomen is long and oval and there is only an indica- 
tion of a constriction at the anterior third—nothing like what we 
find in other species. 
Colour.—The cephalothorax is light brown in colour except 
round the eyes, where it is black. There are white hairs both on 
the cephalothorax and the clypeus. ‘The falces are brown, but the 
