148 



from that form by the peculiar manner in which the hood of the cephalon 

 terminates, its point being deflexed in the form of a hook, a characteristic that 

 gave rise to the specific name falcatus subsequently proposed by the author. 

 The absolute want of eyes is another characteristic to distinguish this species 

 from the species of Sp. Bate, which, to judge from the above-mentioned specimens 

 from the French coast, has well-developed visual organs, though the pigment, 

 after long immersion in spirit, may, more or less completely, disappear. 



Occurrence. I have met with this form not rarely in several places 

 off the south and west coast of Norway, as also in the Trondhjemsfjord and 

 off the Nordland coast, in depths varying from 30 to 200 fathoms, muddy 

 bottom. Boeck collected it at Haugesund and in the Christianiafjord, where 

 I have also found it rather abundantly. 



Distribution. - Coast of Bohuslan (Stockholm Museum). 



Gen. 5. ParaphoXUS, G. 0. Sars, n. 



Body rather stout, and but little compressed. Hood of cephalon evenly 

 vaulted, not carinated, nor deflexed at the point. The 4 anterior pairs of 

 coxal plates rather deep and provided on the distal edge with a series of 

 simple bristles ; 1st pair only very slightly expanded distally ; 4th pair rather 

 broad and deeply .emarginated posteriorly in their upper part; 5th pair with 

 the posterior lobe rounded. Antennae in female nearly equal-sized; inferior 

 ones in male not very elongated, flagellum very narrow and composed of a 

 rather restricted number of elongated articulations provided with comparatively 

 large calceolae. Mandibles with the molar expansion poorly developed, forming 

 a very small lappet tipped with 2 slender spines, palp extremely narrow and 

 but sparingly bristle-beset. First pair of maxillae with the palp larger than 

 in the 2 preceding genera, though only consisting of a single joint tipped with 

 small bristles; 2nd pair with the inner lobe smaller than the outer. Maxillipeds 

 with the basal lobe obtusely rounded at the tip, penultimate joint of the 

 palp oval, not produced at the outer corner, dactylus very slender and curved. 

 Gnathopoda exactly alike both in size and structure, hand oval, constricted 

 at the base. Pereiopoda about as in Phoxocephalus. Last pair of uropoda 

 rather dissimilar in the two sexes, in female comparatively simple in struc- 

 ture, with the inner ramus much shorter than the outer ; in male much larger, 

 with both rami well-developed, and fringed with ciliated setae. Lobes of tel- 

 son rather narrow. 



