206 Indian Araclinoidca. [No. 4, 



The maxillae are very short, pointed, horizontal. The feet of the 

 first pair are the thinnest and longest, the metatarsi, [or should these be 

 considered as the tibiae ?] are one long segment, the tarsi are made up of 

 8 short points and terminate without claws. The other feet are much 

 more robust, the fourth is longer than the third and the third longer 

 than the second, the last two being sub-equal. Each of the feet has only 

 a very short thick metatarsus, and the tarsi consist of four joints, the 

 last of which terminates with two strong claws ; on the fourth pair 

 of feet there is usually a fifth segment well defined. 



Below, the front part is occupied by the immoveable base or the 

 basal segment of the palpi which forms a broad triangle, separated 

 longitudinally by a groove next to which in front there is a very 

 strong slightly curved spine. The coxa3 of the three last pair of feet, 

 (the first being articulated much higher) are broad, almost contiguous, 

 leaving behind the last only a small triangle as the rudiment of the 

 sternum. 



The abdomen is much elongated with sub-parallel sides ; it consists 

 of a minute first and 8 other larger segments, each of which has about 

 the centre a pair of rounded depressions. Below, the first segment is 

 the longest and the two subsequent ones, are very short ; in the centre 

 of the first the sexual opening is situated. 



The seta is very slender, longer than the abdomen, attenuated 

 towards the end, and consists of from 35 to 40 short segments, gradually 

 becoming smaller toward, the tip ; occasionally some of the middle 

 ones are a little longer than others. The base of the seta is formed 

 of three segments, the last being the longest and cylindrical, the two 

 previous more flattened and very short. 



The size of this species varies very much. Young specimens are 

 often found scarcely half an inch long, and others more fully grown 

 which exceed two inches ; the last are the largest I have observed ; 

 the former also differ in colour, being usually more reddish brown, 

 while older ones are dark or blackish brown. 



^'Length of the thorax 16*4 m.m. ; its width about the middle 1 m.m. 

 abdomen 22 m.m. ; 11 m.m. 



* The nomenclature of the different parts of the body will be fully under- 

 stood by a reference to the explanation accompanying the plates. 



