586 Aoridae, Aoroides 



Short (except in Paradryope, p. 602), with accessoiy flagellum (except in 

 Aoroides). The mouth-organs appear to agree in having border of upper lip 

 round or very faintly emarginate, lower lip with acutely produced mandibular 

 processes. Mandible with 3*^ Joint of palp longer than 2^. Maxiila 1 with a 

 «ingle seta on inner plate, 10 spines on outer, 2"^ Joint of palp elongate; maxilla 2 

 with innei" plate fringed. Maxillipeds well developed. Gnathopods 1 (Fig. 101) 

 and 2 not simple, 1^* the larger, and its shape usually differiug much in d 

 and Q . Peraeopods 1 and 2 glandulär. Peraeopod 5 the longest. Branchial 

 vesicles simple. Uropods 1 — 3 biramous, 3^ not elongate. Telson simple. 



The Position of Paradryope (p. (J02) in tliis family cannot, however, be regarded 

 as absolutely secure, and Della Valle's Suggestion that 1 may Jiave transposed the gnatho- 

 pods 1 and 2, if it could be substantiated, would give a welcome relief, by peiinitting 

 the transfer of the genus to the Photidae (p. 603). 



Marine. 



7 genera, 25 accepted species and 3 doubtful. 



Synopsis of genera: 



J Antenna 1 without accessory flagellum-. . . 1. Gen. Aoroides . . . . p. 586 

 \ Antenna 1 with accessory flagellum — 2. 



{Gnathopod 1 in (5 (Pig- 101), 4tli joint immensely 

 produced 2. Gen. Aora p. 587 

 Gnathopod 1 in (5, 4th Joint not immensely 

 produced — 3. 

 {Gnathopod 1 in (5, 5th Joint produced to a 

 strong tooth 3. Gen. Microdeutopus . p. 588 

 Gnathopod 1 in (5, 5tli Joint not produced to 

 a strong tooth — 4. 

 J Uropod 3, rami not minute — 5. 

 \ Uropod 3, rami minute — 6. 



Gnathopod 1 in cj, 5tli and 6tli joints subequal 



in width 4. Gen. Lembos . . . . p. 594 



Gnathopod 1 in cj, 5th Joint much wider than 6tli 5. Gen. Lemboides . . . p. 600 

 Pleon segment 6 dorsally evanescent .... 6. Gen. Dryopoides . . p. 601 

 Pleon segment 6 not dorsally evanescent . . 7. Gen. Paradryope . . p. 602 



1. Gen. Aoroides A. Walker 



1898 Aoroides (Sp. un.: A. columbiae), A. 0. Walker in: P. Liverp. biol. Soc, 

 ».12 p. 284. 



Q . As in Aora and Microdeutopus (p. 588), except that antenna 1 is entii'ely 

 devoid of accessory flagellum, and mandibular palp is very slight and very 

 sparingly furnished with setae on the 3*^ Joint. 



1 species. 



1. A. columbiae A. Walker 1898 A. c, A. 0. Walker in: P. Liverp. biol. Soc, 

 V. 12 p. 285 t. 16 f. 7—10. 



d unknown. — 9. Like 9 of Microdeutopus anomalus (p. 591) except 

 for the generic differences, and side-plate 1 rounded below, peraeopods 3 — 5 

 with wider 2*^ Joint, uropod 3 with peduncle as long as the rami, which are equal, 

 inner ramus with 1 spine about the middle of the inner margin, outer with 

 apical spines only. L. 5 mm. 



Pugret Sound. 



