DESCRIPTION OF SPECIES 



311 



Strong modified spines (Fig. 12 b) as well as two or three more delicate ones. The third 

 appendage of the male (Fig. 1 1 c) is considerably longer and more delicate than the second, 

 with the propodus broad and bearing on its inner margin a double row of eleven spines 

 of the type usually found on this limb. The last thoracic appendage is smaller than the 

 others and is not modified in the male. 



The protopodite of the first three pairs of pleopods is long, without a produced angle, 

 and with the outer margin fringed with delicate hairs. Both exopod and endopod are 

 fringed with strong plumose setae. The exopod of the fourth pleopod has an obUque 



Fig. II. Serolis carinata, Lockington. 

 a, maxilliped of (J: x 52. b, second thoracic appendage of <?: x 52. c, propodus and dactylus of third 

 thoracic appendage of adult J: x 52. d, fourth thoracic appendage: x 35. 



suture, and the outer margin fringed with plumose setae ; the endopod is rounded with 

 a transverse suture. The uropoda extend to the tip of the terminal segment, with the 

 inner distal angle of the protopodite produced and bearing three plumose setae. The 

 exopod and endopod are sub-equal, with rounded distal extremities bearing plumose 

 setae which also extend along their outer margins. 



Locality. San Diego, California. 

 14. Serolis convexa, Cunningham (Fig. 12; Plate XIV, fig. 3). 



S. convexa, Cunningham, 1871, p. 498, pi. lix, fig. 3; Studer, 1884, p. 9, pi. i, figs, i a, d; Beddard, 

 1884 b, p. 37, pi. vi, figs. 9-15; Nordenstam, 1933, pp. 77-82, text-figs. 

 Occurrence. St. 51: East Falkland Island, 115 m.; i ? (b.), 4 immature. St. WS 75 : 51° 01' 30" S, 

 60° 31' W, 72 m.; 2 cJ<?, 2 immature. St. WS 90: 13 miles N 83° E of Virgins Light, Argentine RepubUc, 



8-a 



