ARTHEOPOD FAUNA OP THE WEST INDIES. 477 



•segment but one. There is an indistinct row of sliort setse 

 running transversely along the posterior third of the tergites. 



The pleurcB are finely and transversely ridged in front like the 

 terga; their posterior borders are finely serrate and distinctly 

 augled. 



The penes are long, nearly white, tapering and furnished with 

 close-set transverse series of fine short setae. 



Length 7 mm., width 1"7 mm. 



Locality. St. Vincent {H. JL. Smith). 



Mr. Smith obtained a considerable number of specimens which 



bear the following labels : — Leeward side of island, 1000 ft. ; 



Eichmond Valley, ISOO ft.; Mountain Forest, 2800 ft. and 



3000 ft. In the latter two cases it is stated that the animals 



. were found under rotting; leaves. 



Order HELMINTHOMOEPHA. 



Suborder Callipodoidea. 



Earn. nov. Stemmiflid^. 

 (PI. XXXVII. figs. 3-3 c.) 



On a previous occasion I referred the genus Stemmiiilus to 

 the Callopodidffi * in preference to leaving it in the lulidge, 

 where it was placed by Karsch. But further reflection and 

 study have convinced me that perhaps the affinities of this peculiar 

 genus are best expressed by the establishment of a special family 

 for its reception. 



The family differs from the Callipodidse in having the eyes 

 composed of only one or two ocelli on each side, in the struc- 

 ture of the gnathochilarium {cf. figure), in the partial or complete 

 freedom of the pleurse, in having the terga almost undivided by 

 a transverse groove, &c. 



* I here follow Mr. Bollman (Bull. U. S. Nat. Mus. no. 46, p. 189, 1893) 

 in regarding the genus Callipus of Hisso as synonymous with Lysiopetahim 

 of Brandt. The adoption of this view necessitates the change of the family 

 name LysiopetalidcB to CaUipodidcB, and since Bollman has created the super- 

 family Callipodoidfe for the family, I propose to follow substantially the same 

 course ; but I prefer to call the group a suborder, equal in value to the luloidea, 

 Pocock, or Chordeumoidea (Cook & Collins), and consequently, for the sake of 

 uniformity, I call it Callipodoidea. The suborder will contain the Stemmiu- 

 lidse as well as the Callipodidse. 



