160 llev. Canon A. M. Norman on British Mysid^. 



slender. Telson very short, not half as long as inner uropois, 

 subquadrate, lateral margin naked ; extremity broadly trun- 

 cate, bearing four spines and two setae. Pleopods in female 

 small, simple ; in male formed for swimming, with multiarti- 

 culate branches, and a lateral lobe springing from the base of 

 the inner branch. 



1. Erythrops Goesii, G. O. Sars. 



1863. Mysis erythrophthahnus , Goes, Crust, decap. marina Suecise, 



p. 18. 

 1866. Neinatojms Go'esii, G. O. Sars, Beretning om en i Soram. 1865 



foretagen Zool. Reise ved Kvsterne af Chiistianias og Christiansands 



Stifter, p. 15. 

 1870. Mym erythrophthalmns, Jarzynsty, Prseem. Cat. Crust, decap. 



maris albi et litt. Murman (Trudy Soc. Nat. Petropol. vol. i. fasc. ii.), 



p. 317. 

 1870. Erythrops Go'esii, G. O. Sars, Carcinol. Bidrag til Norges Fauna, 



I. Monogr. Mysider, p. 24, pi. i. 

 1883. Erythrops Go'esii, Czerniavsky, I. c. fasc. iii. p. 16. 

 1889. Erythrops Go'esii, T. Scott, Seventh Annual Eeport Fishery 



Board of Scotland, p. 322, 



Pleon much narrower than cephalothorax ; colour white 

 and hyaline, beautifully variegated with orange and yellow. 

 Rostrum small and little prominent, but distinct and narrowly 

 rounded. Eyes very large, flattened, broader than long; 

 cornea reniform, much hollowed basally as seen from above, 

 and occupying nearly two thirds of whole organ. Antennal 

 scale linear, four times as long as broad, and of nearly equal 

 width throughout, one fourth longer than peduncle of anten- 

 nules; outer margin naked, terminated above in a spine, 

 beyond which the oblique apex is projected to about twice the 

 length of that spine. Gnathopods well developed and strong, 

 combined length of the last two joints equal to the preceding ; 

 nail much shorter than the last joint. Legs shorter than 

 usual in this genus, the hinder pairs gradually increasing in 

 length ; preceding joint not quite so long as tarsus, the first 

 aiticulation of which is one tliird longer than the combined 

 length of the two distal joints ; last legs when bent backwards 

 reach just beyond the fifth segment of pleon. Telson with 

 breadth at the base slightly exceeding the length and twice 

 as broad as at the extremity; sides converging, with nearly 

 straight margins ; truncated extremity sliglitly arcuated, the 

 inner pair of spines twice the length ot the outer. Inner 

 m'ojjods having the inner margin plain {i.e. not serrulated). 

 Length 9-10 millim. 



Bab. This species has been recently added to the British 

 fauna by Mr. Thomas Scott, who in October, 1S88, sent me 



