ARTHROPOD FAUNA OF THE WEST INDIES. 469 



Locality, Cuba. 



I^will not venture to propose a name for the Cuban species 

 identified by Bollraan as N. longitarsis. Tbat it is not lonqitarsis 

 I am persuaded, but whether or not it is one of the other species 

 of the genus, the description of it is not suflBcientlj detailed to 

 show. The border of the maxillary coxse is not produced • the 

 femora of the anal legs are armed with about twenty-two laro-er 

 and smaller hooked spines arranged iu four or five series, and the 

 tibia with two long spines beneath. 



Length 28 mm. 



Family Gteophilid^. 



Synopsis of the Genera. 



The basal plate very small, narrower 

 than the head and first tergite, and 

 wedged in between the head in front, 

 the first tergite behind, and the pleurae 

 of the maxillipedes at the sides ; the 

 coxse of the maxillipedes largely un- 

 covered above by the pleurae Mecistocephalus, Newp. 



The basal plate much larger and free, at 



least as wide as the head . 

 a}. The pleural sclerites which bear the 

 trachese in contact with the tergites; 

 the porous areas situated along the 

 posterior extremities of the sterna. 

 a^. Basal plate narrowed anteriorly; 

 antennae long, slender, the seg- 

 ments longer than wide Geophilus, Leach, 



b"^. Basal plate as wide in front as be- 

 hind ; antennae short, stout, the 



segments wider than long TiENiOLiNUM, nov. 



b^. The tracheal sclerites of the pleurae 

 separated from the tergites ; porous 

 areas not situated along the posterior 

 borders of the sterna. 

 a^. With only one row of sclerites 

 between the terga and the tra- 

 cheal sclerites ; the pleurae of the 

 anal segment very small ; anal leg 

 composed of 6 segments plus 

 the pleura Orphn^us, Mein. 



