464 



the other 2 corabiued. The flagellum somewhat exceeds the peduncle iu 

 length, and is composed of about 16 articulations. The accessor^' appendage 

 is of moderate size, and 5-articulate. 



The inferior antennae (fig. 3) are about same length as the superior, but 

 somewhat more strongly built. The 2 outer joints of the peduncle are simple 

 cylindric, and provided posteriorly with a few fascicles of slender bristles. 

 The flagellum is about the length of those joints combined, and is composed 

 of 8 articulations. 



The mandibular palps (fig. 3) are of normal size, being about as long as 

 the mandibles, and are rather densely setous, with the terminal joint some- 

 what curved, and narrowly truncated at the tip. 



Theguathopoda in the female (figs. 4, 5) are rather strong and slightly un- 

 equal, the posterior ones (fig. 5) being the larger. The propodos in both pairs 

 is of nearly same shape, though different iu size, oval quadrangular, with 

 the palm somewhat oblique, and defined below by an obtuse corner carrying 

 the usual spines. In the male (see fig. 1) the gnathopoda are, as usual, more 

 powerfully developed, though the difference between the male and female in 

 this respect is not very pronounced. 



The 2 anterior pairs of pereiopoda (fig. G) are very robust, and some- 

 what resemble in structure those in G. aralensis. In both pairs, but especi- 

 ally in the 2nd, the meral joint is of very considerable size, and clothed 

 posteriorly with numerous slender curved setae arranged in a double row, 

 anteriorly, with scattered fascicles of rather long bristles. The carpal joint 

 is likewise unusually expanded, though rather short, and provided with a 

 similar dense supply of delicate setae. The propodal joint, on the other hand, 

 is narrow cylindric, with a row of strong spines posteriorly, accompanied 

 by numerous slender bristles. 



The 3 posterior pairs of pereiopoda (figs. 7 — 9) are not nearly so slender 

 as in G. aralensis, and have their outer part densely dothed with fascicles 

 of short spines accompanied by slender bristles. The basal joint of the ante- 

 penultimate pair (fig. 7) is rounded quadrangular in form, having the infero- 

 posteal corner produced to a rounded lobe. That of the penultimate pair 

 (fig. 8) is only expanded in its proximal part, and is accordingly of a more 

 triangular form. The basal joint of the last pair (fig. 'J) is much larger than 

 that of the 2 preceding pairs, forming posteriorly a broad lamellar expan- 

 sion, the edge of which is evenly curved, and fringed with very small liairs. 

 Anteriorly, as also on the innei- face, this joint, like that of the 2 preceding 

 pairs, carries several fascicles of rather long bristles. 



The last pair of uropoda (fig. 1 0) are of moderate size, and have the 

 basal part armed at the end below with a transverse row of 7 strong spines. 



-tus.-MaT. CTp. 294. 44 



