EXPLANATION OF PLATE LIIL* 



Paraoroides unistilus, gen. et sp.nov. 



U.S. — Line indicating natural size of specimen figured below. 



u.s.^j a.s. — Upper anteanse of adult male, with higher magnifi- 

 tion of last joint of peduncle and first of flagellum, to 

 show comparative size of accessory flagellum. The 

 detail figures marked ^ and the month-organs are from 

 the specimen figured as a whole ; the other details are 

 from a specimen which is probably a female, with 

 marginal plates undeveloped. 



■a.i.^. — Distal part of second antenna of male, penultimate joint 

 of peduncle in part. 



I.S., l.i., m.m, mx. 1., mx. 2., mxp. — Upper and lower lips, man- 

 dibles, first and second maxillae, and the maxillipeds. 



ffn. 1^, gn. 2^. — First and second gnathopods of adult male. 



gn. 1, gn. 2, prp, 1, 3, 4, 5. — First and second gnathopods, first, 

 third, fourth and fifth peraeopods of (supposed) female. 



urp. i(J, 2^, 3^, T. — First, second, and third uropods, and telson 

 of adult male. 

 The mouth-organs and portiou of first antenna are magnified 



on a higher scale than the other details. 



