108 AMPiirroDA nohmaija. 



1 . Protomedeia pilosa. 

 Leptoclieinis pilosua, Zadduch, Syn. Crust. Pruss. Prodromus, p. 8, 1844. 



" Cephiilou without ti rostrum. Eyes round. Supeiior antennae 

 nearly half the length of the animal ; first joint thick, second 

 much longer and slighter ; third short, resembling one of the artieidi 

 of the llagellum ; flagellum consisting of twelve articiili. Inferior 

 antennie shorter than the superior ; flagellum consisting of seven 

 articuli. First pair of gnathopoda subchelate ; basos long, anterior 

 margin covered with very short hairs, posterior with a few long 

 ones ; ischium and meros haA-ing the inferior margin fumi.shed 

 with long hairs ; carpus continuous with the propodos, inferior 

 mai'gin pilose ; propodos tumid, the palm {marginem anticum) 

 pilose and obhquely tnincate ; dactylos arcuate, as long as the 

 palm. Second pair- of gnathopoda compressed, slender ; basos 

 having the anterior margin, furnished with dense rigid hairs 

 equalling in length the entii'e organ ; propodos shorter than the 

 carpus ; dactylos straight and feeble ; the inferior margins of the 

 propodos and dactylos having short, the superior margins having 

 long and dense hairs. Posterior pair of pleopoda ha^•ing the rami 

 equal, styliform, fiu'nished at the apex with short haii's. Telson 

 submembranous, short, rounded above. Colour yellow, sparingly 

 spotted ^vith black along the back. 



" Length 1-5 Une. 



" Hab. Baltic Sea, near Gedanum." — Abbreviated from Zaddach. 



2. Protomedeia hirsutimanus, n. s. (Plate XXX. fig. 6.) B.M. 



Eyes round. Antennae subequal, not half as long as the entii-e 

 animal. First pair of gnathopoda having the coxae small ; the 

 ischium produced inferiorly, and tufted with a bmsh of long haii's ; 

 meros small, and thickly covered inferiorly with long hairs ; carpus 

 shorter than the propodos, furnished inferiorly with a thick brush 

 of hairs ; propodos not broader than the carpus, inferior margin 

 parallel with the superior, the anterior extremity famished with 

 three tufts of long hairs, palm imperfectly defined, ha\"ing the 

 inferior half oblique ; dactylos short, straight, furnished vsTith two 

 or three cilia. Second pair of gnathopoda having the coxa as large 

 as those of the first two pairs of pereiopoda ; basos having the 

 anterior mai'gin convex, fringed with two parallel rows of closely 

 set, long, plumose hairs ; carpus four times as long as the propodos, 

 fringed upon the superior margin \\ith a single row of less closely 

 set long plumose hairs; propodos short, tapering, almost equilateral, 

 having the superior margin and apex fringed Avith plumose hairs. 



