SUPPLEMENT 193 



The form of the antenna may be seen from Text-fig. 246, the peduncle consists of five joints, and 

 the flagellum of twelve, of which the terminal three are small. The first three joints are fringed with 

 very short hairs, the next six joints each bear a longitudinal row of minute spiniform processes. 



The mouthparts are of the usual type, the maxilliped (Text-fig. 24c) is broad, with the basipodite 

 separated from its lamella by a suture; the maxilla (Text-fig. 24 rf) has its two outer lobes each bearing 

 two long setae with delicate pectinations along their inner edges ; the truncate distal end of the fixed 

 lobe is fringed with delicate setae; the outer lobe of the maxillula (Text-fig. 24 e) is stout and bears ten 



Text-fig. 25. Serolis acuminata sp.n. (a) First pereiopod, x 30. [b) Second pereiopod, x 30, (c) Sixtli pereiopod, x 30, 

 {d) Seventh pereiopod, x 30. {e) Spines on propodus of first pereiopod, enlarged. (/) Uropod, x 30. 



spines and two delicate setae on the inner angle of its distal truncate extremity; the inner lobe is 

 considerably shorter than the outer and is broadest at its distal extremity which is rounded and bears 

 a single minute spine. 



The first, second, sixth and last pereiopods are shown in Text-figs. 25 a, b, c and d. The propodus of 

 the first is greatly expanded, with its inner edge armed with a row of about twenty-two broad 

 processes alternating with modified spines (Text-fig. 25/); the dactylus bears five flattened spines in 

 its distal region and the distal end of the carpus is crenulate and bears two modified spines similar to 

 those on the propodus. The second pereiopod (Text-fig. 256) is much smaller than the first, with the 

 propodus expanded and its inner margin armed with stout spines, a pair of which occurs at about the 

 middle of its length and a group of four at its broadened proximal end. The remaining pereiopods. 



