27 



Eyes small, ciicular. Siiprrinr autemuv in iViualr lu'arly as luni; as the 

 int'eridi', lia,i;-clliuii lunger than the peduncle, (3-articulate ; in male only slightly 

 reaching beycnul the peduncle of the latter. Posterior gnatho]ioda in female 

 a little larger than the anterior, ]iro])odos of both pairs about as long as the 

 2 preceding joints combined, elongated i|nadrangular, palm transversely truncated 

 and defined below by an almost right angle. Anterior gnathopoda in male 

 having the pro})odos somewhat broader than in female, with the jiahu e\-cnl\- 

 curved; ])osterior ones very lai'gely develo))ed, pro])od(.is oval, scarcely 

 tajiering, jialm obliquely arcuate and defined below by an obtuse projection. 

 Propodal joint of the pereiopoda scarcely dilated, having tufts of small s])ines 

 on the inner edge, dactylus comjjaratively small. Last pair of uro])oda with 

 the ramus scarcely more than half as long as the basal ])art and terminating 

 with a tuft of short s})ines. Telson about twice as l>road as it is long, lobes 

 naeked and angular in form. Colour greenish. Length of adult female 15 — 7 

 mm, of male 8 mm. 



licniarks. — As ])oiuted (Jut by tlie Rev. Mr. Stebbing, IJoeck has errone- 

 ously confounded tiiis and the following species. The halntus-figure of the 

 female given by that author as also the iignre of the 2nd gnathopoda of the 

 male, uiuloubtedly refer not to Rathke's species but to the form described 

 below as H. hdibocJcidna. From thaf species the present form is ea.sily known 

 by the different structure of the gnathopoda, as also by that of the terminal 

 part of the pereiopoda. 



Occurrence. — The present species woiild seem to occiir along the whole 

 coast 'of Norway, from the Christianiafjord up to Vardo, where it has been 

 recently found hx Mr. Schneider, curator of the Troniso Museum. I have myself 

 taken it in several places on our we.st coast, near ordinary tide-mark, between 

 sea-weed. It is very active and, when out of Avater, has a similar ])ower of 

 making abrupt leaps as the Talitri and Orchestias. 



Dislrihntion. — Atlantic coast of Europe: Bohuslehii, Denmark, British 

 Islands, France ; Adriatic (Heller); Azores (Barrois). 



4. Hyale lubbockiana, (S]). Bate). 

 (,1*1. 11, lij:. •>). 

 Nio'ii lahbiickiaim, ii\). liate, Cat. Ainpliii). Brit. Museum, p. 51, I'l. V'JII. lig. 3. 

 Syu: Allorchcfifcfi imhrimtus. Sp. Bate = cf, 

 Hi/iih' Nil.isotii Boerk (part). 



Segments of boily rather .sharply demarcated from each other, giving the 

 back a suliimliricated apjiearance. Integuments on the whole nuicli lirnicr than 

 in H. Nilssdui. the edges of the coxal ]ilates tln'ekened and slightly crenulated. 



