54 



twice the lengtli of the snpeiior, flagellum composed of 23 — 24 joints. Anterior 

 gnathopoda very slender, propodos about the length of the carpus, slightly 

 constricted on the middle. Posterior gnathopoda likewise veiy .slender, pi'o- 

 podos much shorter than the carpus. Basal joint of 3rd pair of pereiopoda 

 very much dilated and broader than that of the 2 succeeding ])airs. Last 

 pair of uropoda with the inner ramus fully as long as the outer and acumi- 

 nated at the tip. Telson very elongated and narrow, nearly three times 

 as long as it is broad, cleft beyond the middle; terminal lobes very narrow 

 and aimed each with an apical and a dorsal denticle. Colour yellowish, with 

 numerous orange-coloured ])igmentary spots, causing the back to assume a 

 more or less reddish orange hue. licngth of adult female 9V2 mi«- 



liemarks. — This is the species on which Sp. Bate founded liis geiuis 

 Scopdoclieiriif:. It is easily known fnim most other Lysianassidse by its 

 thickish glabrous body densely speckled with orange-coloured pigmentary 

 .spots, and by the very conspicuous dorsal incision on tlie 1st segment of the 

 urosome. 



Occurrence. — I liave met witli tliis form in several jilaces both on 

 the soutli and west coasts of Norway at deptlis varying from 20 to 100 fathoms. 

 Quite recently I collected it rather plentifully in the Trondhjem.sfjdrd from 

 dead fishes fastened on the fishermen's lines. 



Distribution. — British Isles, Shetland. 



14. Callisoma Kroyeri, (Bruzelius). 



(PI. 19, fig. 2). 

 Anonyx Kroyeri, Bruzelius, Skand. Amphip. Gammar. p. 45, PI. II, fig. 7. 



Very like the preceding species, but of smaller size and luiving the 

 coxal plates less deep. Cephalon relatively somewhat larger, with the lateral 

 corners scarcely projecting. Last pair of epimeral plates of metasome rounded 

 at the lateral corners, posterior edge smooth. First segment of urosome 

 provided dorsall}- with a similar, though not quite so deep, incision as in 

 C. crenafa. Eyes broadly oval, dark In-ownish. Antennae very like those 

 organs in C. erenata, but with a less number of articulations on the flagella. 

 Buccal mass distinctly projecting beneath the anterior coxal plates. Gnatho- 

 poda comparatively less slender, propodos of the anterior ones much longer 

 than the carpus and of uniform breadtli tliniughout. Basal joint of the 3 

 posterior pairs of pereiopoda less dilated than in G. erenata. Last pair Of 

 uropoda with the inner ramus a little shorter than the outer, but scarcely 

 narrower. Telson shoiiei' than in C. erenata, about twice as long as broad, 



