396 Records of the Indian Museum. [VoL. XI, 
Myrmarachne plataleoides, Camb. (@) 
Salticus plataleoides, Cambridge, Ann. Mag. Nat. Hist. (4) III, p. 68 
S090). 
Pe plataleoides, Peckham, Ant-like Spiders, 1892, p. 33. 
Cambridge described this species from a single specimen in 
the Hope collection at Oxford, the habitat of which was unknown. 
He, however, confirmed his identification on receiving specimens 
from Ceylon. Peckham also describes the species from Ceylon. 
There are 5 specimens in the Indian Museum collection; their 
localities together with the names of collectors are given below :— 
Peradeniya, Ceylon (Ff. H. Gravely). 
Pusa, Bihar (FP. H. Gravely).* 
Sibpur, near Calcutta; 1894 (T. H. T. Walsh).* 
Calcutta (G. C. Chatterjee).* 
Calcutta (F. H. Gravely).* 
Size.—These specimens vary from 6 to 7°5 mm. in total length; 
the falces are from 2 to 5 mm. long. In at least two specimens the 
falces exceed the length of the cephalothorax. 
Simon says, ‘‘ Anterior eyes are in a straight row ’’, but in all 
the specimens, these eyes are a little recurved. The trochanter 
of the 4th leg is whitish and the posterior two-thirds of the 
abdomen ventrally and laterally is of a drab colour. There is a 
yellowish band in the mid-ventral line of the hinder two-thirds of 
the abdomen. 
It is interesting to note that the tube containing the speci- 
men collected by Mr. Gravely at Pusa also contains specimens 
of the ant Oecophylla smaragdinea, which the spider mimics. Dr. 
Annandale tells me that he has seen this or a very similar spider 
eating specimens of this ant. 
Myrmarachne incertus, sp. nov. (2?) 
(Plate xxxii, fig. 2.) 
This species resembles in general shape and appearance 
M. plataleoides and was for some time mistaken for the latter by 
me, but there are important differences which justify its being 
placed in a different species. The following description, which 
embodies differences of this species from M. flataleotdes, is based 
upon 3 specimens as given below :— 
1, Calcutta (N. Annandale). 
2. Pusa, Bihar (F. H. Gravely). 
3. Pusa, Bihar. 
Measurements. 
Cephalothorax 
Total length. (length). (width). Legs. 
I 7T mm. 3°2 mm. I'4 mm. 4132 
2 7 mim, 29mm I mm. 4132 
3 8 mm. 3 _mm. I'5 mm. 4132 
* See note regarding these specimens under MW. 1ncertus, p. 397. 
