266 BRITISH TYROGLYJPHIM. 



rather darker and pinker; legs and rostrum in both sexes 

 pinkish or pinkish brown. All the colours opaque. 



Texture of the body rough and granular, like 

 shagreen; each granulation bears a short and minute 

 spine (PL XVII, fig. 1). The male is the rougher. 

 The result of this is that all the edges of the body are 

 covered with a thickly set irregular series of short 

 blunt points. 



Female. Cephalothorax small, short, less than one 

 sixth of the total length of the creature as seen from 

 above, conical, with curved sides. Rostrum rather 

 obtuse, forming a hood above the mandibles ; which 

 project, giving a pointed appearance. The two rostral 

 hairs thick, stiff, and strongly curved downward. 

 Further back on the dorso-vertex are two powerful 

 spines or spikes directed forward; they spring from 

 large papillae, almost close to the anterior margin of 

 the abdomen. Mandible (PL XIV, fig. 5, and PL 

 XVII, fig. 2) large, short; each arm of the chela 

 tridentate, the terminal tooth of the fixed arm bifid. 

 Maxillae (PL XIV, fig. 6, mx.) plain, not dentate ; com- 

 posed of thin, clear, colourless chitin. There is a well- 

 marked chitinous skeleton supporting the maxillary 

 lip, and projecting inward (PL XIV, fig. 6). Palpus 

 (PL XIV, fig. 6, p.] blunt-ended, with a small pro- 

 jecting tactile point. Lingua triangular, somewhat 

 spoon-shaped, of clear membrane. Abdomen large, 

 gradually increasing in width from the anterior until 

 near the hind margin ; the increase, however, is most 

 rapid in the first third of the abdomen. The anterior 

 and posterior margins are almost straight. The noto- 

 gaster is considerably raised above the cephalothorax, 

 and is almost flat in general level ; the central part, how- 

 ever, is slightly arched, and its lateral edges form bands 

 which are sharply depressed at their inner, and slightly 

 raised at their outer sides. The anterior and posterior 

 edges of the abdomen are somewhat depressed. The 

 extent of the arching of the notogaster varies in differ- 

 ent specimens and at different ages ; there are often 



