1888.] PROCEEDINGS Ofc UNITED STATES NATIONAL MUSEUM. 337 



Description of species. — Browu, legs light chestnut ; robust, wide and 

 depressed, slightly attenuated anteriorly. Segments with a transverse 

 sulcus as in marantus ; tubercles indistinct, arranged in a more or less 

 irregular row along the margins, three or four large scales on lateral 

 carinas; lateral carinse large, strongly margined, anterior angles 

 rounded, posterior much produced. Repugnatorial pore large, sub- 

 apical, marginal. Length of last fourteen segments 22.5 mm , width of 

 seventh segment 4.3 mm . 



The type of this species is a mutilated female, of which the head and 

 first six segments are lost. On account of this I have been unable to 

 determine the subgenus unless it belongs to the same as marantus. 

 Karsch has described two other species of this genus from Cuba, but 

 both belong to the subgenus Gryptodesmus and lack the transverse dor- 

 sal sulcus. This is the largest Rhacophorus known. 



7. Orphnacus brasiliensis Meinert. 



The collection contains a fine female, which agrees very well with 

 Dr. Meinert's description of this species. This is the first record of this 

 species from the West Indies. 



8. Mecistocephalus punctifrons Newport. 



There are a few specimens in the collection which I refer to this spe- 

 cies, agreeing with Dr. Meinert in considering M. guildingii a doubtful 

 species and identical with M. punctifrons. 



9. Scotopendra alternans Leach. 



One female of this species sent by Professor Poey. 



10. Newportia longitarsis Newport. 



Scolopocryptops longitarsis Newport, Linn. Trans., 407, pi. 40, fig. 10, 1844 (St. 



Vincent). 

 Newportia longitarsis Gervais, Apteres, iv, 298, 1847 ; Newport, Cat. Myr. Brit. 



Mus., 57, 1856. 



Rufous, head and posterior border of segments darkest, antennas and 

 legs pale. Moderately robust, smooth, sparsely punctate. Head sub- 

 oval, sparsely punctate and pilose, not margined, posterior half with 

 two longitudinal sulci. Antennas short, attenuate, 17 jointed, basal 

 joints crassate, all except the first two hirsute. Prosternum not promi- 

 nent, callose, sinuate. Anal legs very long and slender, somewhat de- 

 pressed, femora armed with about 22 large and small hooked spines 

 which are arranged in four or five series, tibia with two long spines be- 

 neath, femora and tibia with numerous hooked hairs on the inside. 

 Penultimate pair of legs with the tibia and first tarsal joint also fur- 

 nished with numerous hooked hairs. 



Dorsal plates with six sulci, the median straight or slightly curved 

 inwards, the others outwards. Posterior pleurae scabrous ; pores numer- 

 ous, small ; terminal spine large and robust. Last ventral plate 

 moderately wide, sides converging, posterior border sinuate. Length 

 2S mm , width 3 mm . 



Proc. N. M. 88 22 jM*1 S"i ( %%< 



