646 MR. A. D. MICHAEL ON THE [DeC. 1, 



Uropoda coccinea, n. sp.^ (Plate XLIX. figs. 1-1/.) 



2 c? 



millim. millim. 



Length, about '78 '75 



Greatest breadth, about . . -58 '51 



This species somewhat resembles TJropoda festiva, Berlese, from 

 Paraguay and, less closely, U. lamellosa of the same author (ex 

 Canestrini). 



Colour deep crimson in living specimens, after death this fades to 

 a reddish brown or sometimes to a yellowish brown. 



Texture very rough and dull. 



Slmpe nearly elliptical, but witli the dorsal plate projecting over 

 the rostrum as a narrow plate bent sharply downward and slightly 

 bifid at the distal end. 



From the rostral projection a thiu undulated lamina runs along 

 each side of the body ; it is slightly translucent, widest anteriorly, 

 finely granulated aud striated, and strongly bent downward between 

 the second aud third pair of legs. Above and within this lamina are 

 two rough and dark, projecting, concentric, chitinous ridges, the inner 

 considerably above the outer ; between them is a broad, almost 

 concave, finely granulated baud widest at the sides. Within the 

 inner ridge is a plain space slightly granulated, then the back rises 

 sharply from each side toward the median line, which, however, 

 is not an edge or ridge, but is rounded. The raised portion is 

 divided by a deep, irregular, transverse sulcation about two thirds of 

 the way back, which, however, does not reach the median line ; thus 

 the two parts of the raised centre are joined by a broad longitudinal 

 joining-piece. The raised parts are not smooth, but each has a very 

 slightly raised space occupying its central portion ; the anterior of 

 these is somewhat seven-lobed and the posterior more four-lobed ; 

 both are indistinctly marked out and covered by raised, rough, dark 

 broken ridges and lumps, all very irregular and never quite alike in 

 two specimens or on the two sides of the same specimen ; amongst 

 these markings six great rounded pieces, which border and project 

 into the transverse sulcation, are much the strongest and darkest. 

 Between all these markings the chitin is granulated but more finely. 

 There are not any hairs on the body. 



Mandibles (fig. 1 h) very minute, those of male without the 

 pointed spear-like end usual in the genus ; each arm of the chela 

 simply bidentate. Palpus with two large spines on the basal, and 

 one on the penultimate joint, besides numerous smaller spines and 

 hairs ; one hair on the terminal joint is very large. Epistome (fig. 1 c) 

 long and very pointed, with a few spines near the middle. Hypo- 

 stome (maxillary hp) (fig. 1/) with the two sides (maxillae) not fused, 

 the outer part of each (galea of Megnin) of the ordinary type, the 

 inner part (lacinia) a dense brush of long fine hairs. Epipharynx 

 (fig. 1 d) triangular, fringed and strewn with fine short hairs. This 



^ If Prof. Berlese's genus of " Trachyuropoda " be adopted, this species should 

 be included in it. 



