300 REPORT 1868. 



p. 55, pi. ix. fig. 12. In the branchial sac and water-passages of Ascidia 

 mentula. 



Notopterophorus papilio, Hessfy Annales des Sciences Natur. Cinquieme Serie, 

 Zoologie, vol. i. (1864) p. 338, pi. ii. figs. 1, 2, and vol. iii. (1865) p. 221. 

 This most extraordinary species was found by Mr. Hancock in the 

 branchial sac and water-passages of Ascidia mentula. It is a very inter- 

 esting addition to onr fanna. 



Entorocola eruca, n. sp. Allied to Entorocola fulgens, Van Beneden (Re- 

 cherches snr la Faune Littorale de Belgique, Crustaces (1861), p. 150, 

 pi. xxvi.), but is apparently distinct. The feet have one branch stout, 

 papillary, not furnished with any claw, the other much more slender, 

 terminating in three minute curved spines. The fifth segment of the 

 body has a cylindrical tubercular process on each side of the back. The 

 abdomen is composed of two (? three) articulations, and terminates in a 

 furca, the branches of which are shorter than broad, and are furnished 

 with a spine at the tip. 



Adhering to the intestine of Ascidia intestinalis. The type of the 

 genus was found by Yan Beneden in two species of Aplidium. 



Lichomolgus forficula, Thorell, Krustaceer somlefva i arter af slagtet Ascidia, 

 p. 73, pis. xii. & xiii. fig. 19. From the water-passages and branchial 

 sac of Ascidia mentula. 



Ascomyzon echinicola, n. sp. Form of body and of the several segments near 

 to that of A. Lilljeborgii (vide Thorell, K. Yet. Akad. Hand. Bd. iii. 

 No. 8 (1859), pi. xiv. fig. 21), but the last thoracic segment rather 

 longer, and the caudal laminae fully twice as long as broad, and longer 

 than preceding segment. Upper antennae much shorter than in that 

 species, 20-jointed, the eleven basal joints excessively short, the remain- 

 ing somewhat longer, but none of them (unless it be the seventeenth and 

 eighteenth) as long as they are broad. 

 Parasitic upon Echinus esculentus, Linn. 



Caligus rapax, M. -Edwards. Common on fish belonging to the family 

 Gadidae. 



curtus, Miiller= C. Mulleri, Baird, Brit. Entom. p. 271, pi. xxxii.figs. 4, 5. 



Common on Cod, Haddock, Ling, &c. 



Lepeophtheirus Salmonis, Kroyer, Naturhistorisk Tidsskrift, 2 Bd. (1837) 

 p. 13, (figured) : 1 Bd. pi. vi. fig. 7, = Lepeophtheirus Stromii, Baird, Brit. 

 Entom. p. 274, pi. xxxii. figs. 8, 9. From " Sea-Trout " taken in the 

 loch near Burrafirth. 



Hippoglossi, Kroyer. "Not uncommon on Hippoglossus vulgaris. 



Trebius caudatus, Kroyer. Common on Skate. 



Nogagus Lutlceni, n. sp. Upper antennae with both joints long, the first 

 terminating in a bunch of lanceolate plumose seta?, the second somewhat 

 clavate, three to four times as long as broad ; anterior margin plain, 

 posterior with a single spine just beyond the middle ; extremity with a 

 tuft of seta). Cephalothorax much rounded, the posterior lateral pro- 

 cesses strongly arched and incurved. Hinder antenna) with the hook 

 long and slender, and the penultimate joint furnished with two very long 

 setae. Second gnathopods (maxillipeds) with three crenated nodulous 

 processes on the palm. Genital segment subquadrate, rather longer 

 than broad, the sides gently convex. Abdomen consisting of two seg- 

 ments and the caudal laminae ; the segments short and broad, the second 

 as long again as the first, the two taken together not exceeding the 

 breadth of the last ; the caudal laminae large, as long as the two pre- 



