﻿CRUSTACEA MALACOSTRACA. II. ^j 



combined, more lliaii half as lonii auaiu as broad; Uic lateral margins fcebh' convex posteriorly and 

 then convergino; to the front angles; the anterior end slightly more than half as broad as the carapace 

 a little from the hind margin; rostral ])rocess moderatel\- long, somewhat narrow, acute. 



Antennuke (figs- 2a and 2b) considerably shorter than the carapace, somewhat robust. First 

 joint a good deal longer than second and third joints combined, not fidly three times as long as deep 

 and tapering considerably to the end; second joint about as long as deep; third joint conspicuously 

 more than twice as long as the second, thin, with the longest terminal seta scarcely longer than the 

 joint. — Antennce of usual size; third joint not thickened; fom'th joint not twice as long as the pen- 

 ultimate and with long setae from its distal lower angle; longest terminal seta; much longer than 

 those of the antennuke. 



Chelipeds ver>- slender (fig. 2 bl. Basal joint with the posterior process moderately long and 

 its pro.ximal margin rounded; tlu- distance between this margin and the front lower end of second 

 segment onl\- a little shorter than the Ixisal joint. Carjjus almost twice as long as the basal joint and 

 a little more than three times as long as deep. Chela small, somewhat shorter than the carpus, three 

 and a half times as long as broad; moval)le finger slightly longer than the anterior margin of the 

 hand; fixed finger near the base considerabh* broader than the movable. 



Thoracic segments, as far as could be ascertained in the mutilated specimen, in the main as 

 in T. unicroiKi/tts n. sp. (comp. description and figs. 3a of this speciesi, but the difference between the 

 anterior and the posterior breadth of each segment seems to be a little smaller and the lateral margins 

 of the segments a little less convex (fig. 2a). Second segment (figs. 2a and 2 b) only slighth- more 

 than half as long as the third and without \'entral process. — Thoracic legs on the whole slender. 

 Second pair (fig. 2 b) slender and moderately long; fourth and fifth joints with the distal anterior setae 

 somewhat long; sixth joint long, onh- a little shorter than fifth and fourth joints comltined and without 

 an\' perceptible distal anterior seta; seventh joint with claw nearly as long as sixth joint. Third pair 

 mutilated, but scarcelv much different from fourth pair (fig. 2 c) which is very slender, much shorter 

 than second pair, with a rather long seta on the distal anterior angle of fifth joint, sixth joint con- 

 siderably longer than the fifth btit slightly longer than seventh joint with claw. Three posterior 

 pairs of legs peculiarly built and unusually long (fig. 2d); second joint not fully four times as long 

 as broad; fourth and fifth joints somewhat slender, though considerabh- and gradually widened on the 

 anterior side towards the end, and there with a couple of somewhat long, slender si)ines, fifth joint 

 besides with a couple of slender spines on the terminal inner margin; sixth joint not much longer 

 than the fifth, moderately slender; seventh joint and the short, thin claw combined somewhat more 

 than half as long as sixth joint. 



Abdomen about as long as the two preceding segments combined. - I'ropods nnitilated. but 

 one exopod (ffg. 2e) has been preserved; it is long, very slender, perhajts undivided, but the seta gen- 

 erally found just before the articulation is long and originates even slightly be>ond the middle. 



Length of the single specimen 2.05 '"'". 



Remarks. T. graciliprs is easily distinguished from all species of 73'//'A'A/«(//.f described in 

 this paper b\ its .slender, small clulii)eds and the peculiar three posterior pairs of thoracic legs with 

 the long and slender spines on fomtli and fifth joints. It is closel\ allied to 7'. iiiicroclu'lts (i. ( ). S., 



Tlic Ingoll-Kxpc-diti.)!!. HI. i. ° 



