ANT-LIKE SPIDERS FROM MALAYA. 



279 



In the following descriptions I have used Lankester's terms 

 ''prosoma" and "opisthosoma" for the main divisions of the 

 hody, while retaining " caput" and "thorax," employed by Cam- 

 bridge, as convenient terms for the two parts of the former. 



The " thoracic groove " is the depression between caput and 

 thorax. "Cephalic wedge" the w T edge of white hairs or colour 

 at the side of the prosoma reaching downwards from the groove. 

 "Width " or " height " means greatest width or height. 



The eyes are referred to as 1, 2, 3, 4 in the order — central of 

 front row, lateral of ditto, central of back row, lateral of ditto ; the 

 small eye of the Salticidse being considered as 3 in this series. 



The intervals between the eyes are expressed as 1 . 1, 1 . 2, &c. 

 When the shape of a quadrilateral of eyes is mentioned it is con- 

 sidered as the quadrilateral circumscribing the eyes in question. 

 The letters f, b, o, u referring to an eye indicate that it is 

 directed forward, backward, outward, upward. 



The basal end of the groove of the falx is the end nearest the 

 root of the unguis. 



The joints of the legs are referred to as c, tr, f, p, ti, m, and 

 ta, with a subscript letter to denote the particular leg where 

 necessary ; thus tr 3 means " trochanter of third leg." j , j 

 refer to joints of pedicel. 



In describing the prosoma the order adopted has invariably 

 been : (a) as seen from above, (b) from the side, (c) from in front. 

 In the case of the falc<\s and opisthosoma it has been (a) from 

 above, (b) from the side, (c) from below, though in none of these 

 has it always been thought necessary to describe from all these 

 positions. 



The upper margin of the groove in the falces is always that 

 furthest from the maxilla 3 , even though this in the case of 

 Amycicpa and some female Salticids may more correctly be 

 described as " outer." 



Key to Myrmarachne mentioned in this paper. 



1. a. Second joint of pedicel much greater than first. Opistho- 



soma constricted cornuta. 



b. Second joint of pedicel equal to or more often much less 



than first 2 



2. a. Opisthosoma not constricted 3 



b. Opisthosoma constricted 5 



3. a. Pedicel short 4 



b. Pedicel long tnrriformis. 



4. a. Spines on 1st tibia 6 to 7 pairs maxillosa ^ . 



b. Spines on 1st tibia 5 pairs hiseratensis $ . 



5. a. 1st patella no spines, 1st tibia 4 pairs alhicrurata ^ . 



b. 1st patella 1 spine 6 



c. 1st patella 1 pair of spines, 1st tibia 6 to 7 pairs 7 



6. a. 1st tibia 4 spine pairs ramosa <$ . 



b. 1st tibia 5 to 6 pairs lateralis 



7. a. White wedge on side of prosoma cuneata $ . 



h. No white wedge , gedongensis <J . 



