30 1. V. HODGSON. 



much larger ; but ventrally, this joint and the coxae also are covered with normal setse. 

 These spines are best developed on the first tibia, two dorsal and two lateral rows 

 being conspicuous, a ventral row of much finer spines occurs. On the second tibia all 

 these five rows occur, but the spines are rather finer. The setae of the two terminal 

 joints are small without the enlarged bases, but arranged in the same manner. The 

 terminal claw is long and slender, and is accompanied by two quite small auxiliaries. 

 The distal fringes of the various joints do not present any unusual features. 



The single specimen is a female, the Genital apertures are conspicuous on the 

 second coxae of all the legs. 



Off the Barrier. January 27, 190'Z. 300 fms. Mud. 



Lat. 78° 25' 40" S., long. 185° 39' 6" E. 



CHiETONYMPHON MENDOSUM. 



(Plate IV., fig. 3 ; Plate X., fig. 13.) 

 Specific characters : — 



Body robust and tapering, articulation imperfect, lateral processes not widely separated, and with 

 stout spines distally and dorsally ; no fine setae whatever. 

 Ocular tubercle short and stout. 



Palp five-jointed, proportions of last three 5'5 : 1'5 : 1"6. 



Oviger ten-jointed, denticulate spines few, with four teeth on each side, two of them prominent. 

 Legs with five rows of spinous seta, without enlarged bases ; terminal claw with two small 

 auxiliaries. 



This species is very closely allied to the last, but is much smaller, and presents 

 other differences which are usually regarded as of specific rank. 



The Body is robust and slightly tapering, with stoutly developed lateral processes, 

 the intervals between which are variable, widest but not very wide between the first 

 and second pairs ; the third and fourth being quite close together, the articulation 

 between the two posterior pairs is not present. 



The Cephalon is short, anteriorly expanded into two diverging lobes ; the neck 

 is distinct, but very little constricted. 



The Ocular tubercle lies behind the neck, but not clear of the first pair of lateral 

 processes. 



The Abdomen is horizontal, long, extending considerably beyond the first coxa, 

 ovoid, tapering to a blunt point ; it completely fills the space between the two posterior 

 lateral processes. All this is in close agreement with the preceding species. The 

 differences are : — The complete absence of fine setae from the entire body ; the ocular 

 tubercle is rather short, stout, and slightly inclined forwards, carrying four well- 

 developed eyes with pigment on its rounded summit ; the lateral processes all 

 provided with two or three stout spines dorsally and distally ; the spinous setae of the 

 legs, while having the same arrangement as in the preceding species, are, on the whole, 

 stronger in themselves, but without the enlarged bases. 



The length of the body is 6' 5mm., and its width just exceeds 3mm. 



