208 



THETIS SCIENTIFIC RESULTS. 



spines are large and about half the length of the dactylus ; the 

 lower border of the latter is beset in its proximal half with 

 denticles, similar to those existing on the three preceding joints. 



The third and fourth legs have the anterior border of the basos 

 denticulated, and the lower borders of the carpal and propodal 

 joints are armed with about twelve or more long, equidistant 

 spinules. The propodus joint of the fifth leg is abbreviated and 

 thickened at the extremity, which bears two transverse rows of 

 setse ; each seta has numerous short branches arranged along its 

 concave surface ; the dactylus is much shorter 

 than in any of the preceding or following legs. 



A few" plumose hairs are present on the 

 proximal parts of all the legs and on the 

 various angles of the body. 



Uropods stoutish, equal in length to the 



external margin of the supporting segment ; 



Uropod. each terminates superiorly in a strong, acute, 



Fig. 15/. curved spine, directed upwards and forwards. 



Outer ramus short, with two articulations; inner about twice 



the length of the pleon and consisting of sixteen articulations. 



The female differs from the male in having the 

 first pair of legs much less robust in character; 

 the hand has the palm longer than the fingers. 



The expodites, if present, are minute and not 

 distinguishable from some of the stouter setae. 



Colour, in spirit, body reddish-cream, sides of 

 cephalon and central carinse light terra-cotta. 



Left Chelipede ^^^^^^ ^^^ hundred and twenty examples, obtained 

 OF Female, off Port Hacking, Jibbon, Botany, and Wata Mooli, 

 Fig. 15^. in 20-59 fathoms. 



Total length of body ... 



6 "8 mm 



Length of cephalon ... 



.. 1-7 „ 



,, ,, peraeon 



.. 3-7 „ 



,, ,, pleon 



• 1-4 „ 



,, ,, left chelipede 



.. 3- „ 



,, ,, second left leg 



... 4 „ 



,, ,, third left leg 



•• 2-3 „ 



, „ seventh left leg 



•• 1-5 „ 



