Cryptocerid(R and Echinophi. 415 



Sp. 5. Cntaidacus horridus, Smith, Proc. Linn. 5oc, ii. 81, pi. ii. 



fig. 3 5 . 

 Hab. Borneo. In Coll. Saunders. 



Sp. G. Cataulacus 7-eticidatus, Smith, Proc. Linn. Soc. ii. 81, 



pi. ii. fig. 8 5 . 

 Hab. Borneo. In Coll. Saunders. 



Sp. 7. Cataulacus insularis, Smith, Proc. Linn. Soc. ii. 80, pi. ii. 



fig. 4 ? . 

 Hab. Borneo. In Coll. Saunders. 



Sp. 8. Cataulacus setosus, Smith, Proc. Linn. Soc. v. 114, pi. i. 



fig. 7 5 . 

 Hab. Bachian ; Mysol ; Waigiou. In Coll. Saunders. 



Sp. 9, CataulacusJlagitiosuSfSmhh, Proc. Linn. Soc. vi.49, 1 ^. 



(PI. XIII. fig. 2 5.) 

 Hab. Celebes. In Coll. Saunders. 



Genus Ceratobasis, Smith. 



Sp. 1. Ceratobasis singitlaris, Smith, Journ. Entom. i. 78, 



pi. iv. figs. 12, 13 $ . 

 Meranoplus singularis, Smith, Cat. Hym. Ins. Form. p. 



195, pi. xiii. figs. 6—10 ^. 

 Hab. Brazil. In Mus. Brit. 



Family FORMICIDiE, Leach. 

 Genus EcHiNOPLA, Smith. 

 In the Journal of Proceedings of the Linnaean Society, in 1857, 

 I first characterized the genus Echinopla : at that time it appeared 

 to me to possess many characters in common with some of the ants 

 comprising the family Cryptoceridce, particularly that of the first 

 abdominal segment concealing all the following segments. Having 

 had opportunities of carefully examining a number of specimens of 

 the seven species now known, I have satisfied myself that the true 

 situation of the genus Echinopla is near to, perhaps following, the 

 genus Polyrhachis in the Formicidce. I have thought it desirable to 

 publish a list of all the species at present known to me, and also to 

 give figures of each, in order to facilitate their identification. 

 Some of the species are described from unique examples in the 

 Saundersian Collection ; hereafter, when numerous examples may 



