252 Part III. — Nineteenth Annual Report 



similar to the hook observed iu the male of that species (fig. 11) ; a further 

 examination of the specimens showed, however, that they were the males 

 of 0. anglicus, Lubbock (fig. 11). Corycceus anglicus has also been 

 obtained in a gathering from the Moray Firth, collected thirteen to 

 fourteen miles north-east from Buckie, in 50 to 55 fathoms, on November 

 3rd, and in a gathering collected off Aberdeen in 45 fathoms on the 7th 

 of the same month, but the specimens were females. 



L.ICHOMOLGID.E. 



Lichomolgus fucicolus (G. S. Brady). 



One or two specimens of L. fucicolus occurred in a gathering col- 

 lected in 72 fathoms in the Sound of Mull, March 31st, 1900. 



ASTEROCHERID.E. 



Collocheres gracilicauda (G-. S. Brady). 



This species was obtained in some dredged material collected near the 

 head of Loch Eil in 10 to 15 fathoms, April 3rd, 1900. G. gracilicauda 

 is a moderately rare species, but it has apparently an extensive distribu- 

 tion. It has been recorded off the Yorkshire coast by Dr. Brady, from 

 the Liverpool Bay district by Mr. I. C. Thompson, and also from the 

 Firth of Forth ; Dr. Canu has obtained it in the neighbourhood of 

 Boulogne, and Dr. Giesbrecht in the Bay of Naples. 



Incerta sedis. 



Cancerina, T. Scott (gen. nov.). 



Description of the genus. — Antennules short, six-jointed. Antennae 

 small, and simple in structure, not fitted for grasping. Mandibles narrow 

 and of moderate length, toothed on the distal half of the inner margins, 

 and somewhat like the mandibles of Lerneopoda. First maxillipedes 

 somewhat rudimentary, unprovided with terminal spines or claws. 

 Second maxillipedes large and strong, armed with stout but very short 

 terminal claws. Thoracic feet, two pairs, they both are somewhat alike, 

 and each foot consists of a single biarticulated branch. As there is but 

 the one species a detailed description will be found in the specific 

 definition. 



Cancerina confusa, T. Scott (sp. n.). (PI. XVIIL, figs. 12-20.) 



Description of the female. — The length of the specimen represented 

 by the figure is fully 1 mm., from the forehead to the end of the caudal 

 furca. The cephalothorax, seen from above, is sub-rhomboidal in out- 

 line. The cephalic segment is small, but moderately distinct ; it is 

 very short, being scarcely half as long as it is broad. The thorax, 

 which appears to be unsegmented, is widest at about one-fourth of its 

 length from the anterior end; from the widest part, the thorax, on 

 each side, tapers towards both ends, the front slope is short and terminates 

 at the cephalic segment, the posterior slope, which is longer and slightly 

 sinuate, extends to the genital segment of the very short abdomen ; this 

 segment is moderately broad, rather more so than the posterior part of 

 the thorax to which it is adjacent ; the remaining segment of the 

 abdomen is very small, and the caudal furca, which are short, are placed 



