301 



9. Monoculodes norvegicus, Boeck. 



(PL 107. fig. 1), 

 Monoculodes norvegicus, Boeck, Crust, auoph. bor. & arct. p. 84. 



Body comparatively rather short and stout, though somewhat com- 

 pressed. Cephalon about the length of the 3 anterior segments of mesosome 

 combined, evenly curved in front, and produced to an acuminate deflexed 

 rostrum reaching beyond the basal joint of the superior antennae. Anterior- 

 pairs of coxal plates comparatively deeper than in the preceding species; 1st 

 pair but slightly expanded in their outer part; 4th pair rather narrow in 

 proportion to their depth, infero-posteal corners a little produced. Eyes 

 rather large, oval in form, placed as usual close together at the base of the 

 rostrum, pigment dark red. Superior antennae about the length of the cephalon 

 and the 3 anterior segments of mesosome combined, and reaching considerably 

 beyond the peduncle of the inferior ones, 1st joint of the peduncle fully as 

 long as the other 2 combined, flagellum longer than the peduncle, and com- 

 posed of about 12 articulations. Inferior antennae (in female) scarcely longer 

 than the superior, the 2 last joints of the peduncle about equal-sized, flagel- 

 lum not attaining the length of those joints combined. Anterior gnathopoda 

 not very strong, propodos oblong oval in form, slightly curved, and somewhat 

 expanded distally, palm well-defined and scarcely as long as the hind margin, 

 carpal lobe rather large and broad, extending to the palm of the propodos. 

 Posterior gnathopoda rather slender, propodos very narrow, nearly 4 times as 

 long as it is broad, carpal process extending about to the end of the hind margin 

 of the propodos. Pereiopoda very slender, carpal joint of the 2 anterior pairs 

 but little expanded, and considerably shorter than the propodal joint, dactylus 

 slender and elongated, though not quite attaining the length of the propodal 

 joint. Last pair of pereiopoda considerably exceeding half the length of the 

 body, basal joint rather broad, with the posterior edge strongly arched, carpal 

 joint longer than the 2 preceding joints combined, and somewhat exceeding 

 the length of the propodal one. Telson quadrangular, but little longer than 

 it is broad, terminal edge scarcely insinuated. Body whitish, ornamented 

 with a reddish brown pigment, forming broad transversal bands extending 

 down the coxal plates. Length of adult female scarcely exceeding 6 mm. 



Remarks. - The present species, established by Boeck, may be readily 

 distinguished from those described above by its comparatively short and stout 

 form of body, by the acute deflexed rostrum, and the comparatively very 

 slender pereiopoda, finally by the colour of the body, which is distinct even in 

 specimens for a long time preserved in spirit. 



Occurrence. Though nowhere in any considerable number, I have 



