BY WILLIAM A. HASWELL, M.A., B.SC. 1027 



The proboscis is very large, about three fourths of the length of the 

 body, as broad as the body in its middle part, constricted behind, 

 narrowing somewhat in front and ending in a blunt apex, the out- 

 line being that of a long oval. The abdomen is exceedingly small, 

 not a third of the length of the rest of the body, cylindrical, 

 narrowing slightly towards the posterior extremity, which is 

 obscurely notched. The first pair of appendages are very short, 

 not a half of the length of the proboscis. The second pair are 

 somewhat longer than the proboscis, slender ; the first and second 

 joints are small ; the third is the longest, extending beyond the 

 extremity of the first pair of appendages ; the fourth very small ; 

 the fifth nearly half the length of the third ; the sixth to the tenth 

 all small ; the tenth narrow oval, rather more than thrice as long 

 as broad ; the five terminal joints are ornamented with a few short 

 and fine hairs. The seventh pair of appendages are rather smaller 

 than the fourth, fifth and sixth : the latter are rather more than 

 twice the length of the body exclusive of the abdomen : the first 

 three joints are all short, the second the longest of the three, con- 

 stricted proximally, and ornamented at its distal end with a very 

 prominent process having a few small hairs ; the fourth joint is 

 rather longer than the second and third together ; the fifth is 

 slightly longer and narrower than the fourth ; the sixth is rather 

 longer and narrower than the fifth ; the seventh is very small ; 

 the eighth about two thirds of the length of the sixth, the large 

 claw not cpiite half the length of the eighth joint : the fifth and 

 sixth joints are slightly constricted proximally ; each bears a few 

 longish hairs on its dorsal border ; the palm on the eighth joint is 

 not distinctly defined ; the palmar border bears eight spines, of 

 which the proximal three are longer than the others ; the dorsal 

 border of the eighth joint bears about ten bristles : the small claws 

 are scarcely two-thirds of the length of the large. 



I found specimens of this species on Clark Island, Port Jackson. 

 It is very nearly related to Ammothea Langii of Dohrn ; but the 

 form of the terminal joint of the second pair of appendages and 

 other minor points distinguish the two species. 

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