CRUSTACEA PEOM EUTCH AND SIND. n 



PAL^OCARPILirS SIMPLEX, StoL, PI, V, Pio-. 6. 



The single fragmentary specimen of this species indicates a transversally 

 oblong shape of the carapace, moderately convex, pitted above, and apparently 

 smooth below, with the front entire, sulcated near the edge, produced and bent 

 downwards in the middle ; the antero-lateral margins were probably shorter than 

 the distance between the eyes ; they are thin, without any tubercles. The basilar 

 joint of the antennae is narrow, slightly flexuous, and very long; it terminates with 

 a truncate edge in the inner angle of the orbit ; its base is conspicuously thicker 

 than the rest of its length. The pits for the antennulge are rather elongately 

 elliptical, and the basilar joint occupies considerably more than one-half of the 

 cavity ; its upper edge is raised and flexuous. The outer maxillipeds are imperfectly 

 preserved, but the three first endopodite joints exactly agree in form with those 

 of the male Falceoc. rugifer. 



The chelse appear to be rather short and thick; the left hand is smooth, with- 

 out any tubercles at the upper edge; the outer surface is evenly, the inner angularly, 

 convex, the lower edge is rather sharply angular. The fingers are not quite equal 

 to half the length of the hand, thin, pointed, with the inner edges sharp and 

 slightly undulating, provided with indistinct tubercles : both are coloured black. 



Although the above-noted characters are few, they are mostly so far character- 

 istic that they may serve as sufficient to recognize the species. It is easily distin- 

 guished from P. Klipsteini, which also has an entire front edge, by the great width 

 of the frontal region and the absence of tubercles on the hands. The great length 

 of the basilar joint of the antennse characterizes the species as a Palcsocarjnlim. 



Locality.— Roxe, in a white earthy limestone of the Babua Hill, north of 

 Punandrow, south of Lukput. 



Genus,— QMJE^OV^l^, Al. llilne-Mtoards. 



Galenopsis Mtjechisoni, M.-Mw., pi. Ill, Pig. 2. 



This species was originally described under two distinct names, Arges Mur- 

 cMsonis^ndiMwardsii, Haime and d'Archiac, (Descript. desfoss. numulit. de I'lnde, 

 p 340) Al. Milne-Edwards (Crust. Podoph., I, p. 350,) considers the distmctions 

 pointed out in the greater or lesser tumidity of the carapaces as referring to the 

 males and females of the same species. The same author has shown that the 

 seneric determination of the Indian fossil was not correct, the typical species of 

 Araes (A parallelus, deHaan,) belonging to the Catombtofivm, ^n& not to the 

 cL^niD^. Ha^-ing recognized the affinities of several other simHar species to the 

 recent OalencB, he proposed to unite them into a new genus under the name (?.?.- 

 nopsi., and also referred Arges MurcMsoni to it. The materials at his disposal were 

 Z sufficient for an exhaustive description of the species, and unfortunately^ this 

 cannot be given even at present. We only possess m our Museum a single 

 mTspecimen, which is, however, in several respects better preserved than any other 

 Tstt on record. I shall, therefore, first give a brief description of this and then 

 le some the characters which bear upon the generic determination of our fossil. 



