280 REPORT 1868. 



Odius carinatus (Bate). Otus carinatus, Bate & Westw. Brit. Sessile-eyed 

 Crust, p. 224. Very rare ; two specimens only, in 70-80 fathoms, 

 sixty miles east of Shetland, 1861. The type was taken by Mr. Barlee 

 in his last expedition to the Shetland Islands. The name Otus being 

 preoccupied, Lilljeborg has substituted that of Odius for this genus 

 (Lilljeborg, Crust. Amphip. Lysianas. p. 19). 



Helleria coalita, Norman, Ann. Nat. Hist. 4th ser. vol. ii. (Dec. 1868) p. 418. 

 Surface-net, Lerwick (Mr. D. Eobertson). 



Epimeria tricristata, Costa, Eicerche sui Crostacei Amfipodi del regno di 

 Napoli (1853), p. 197, pi. ii. fig. 2, =Acanthonotus Owenii, Bate, Brit. 

 Assoc. "Rep. 1855, p. 58 ; Bate and Westwood, Brit. Sessile-eyed Crust. 

 p. 232. Common in deep water. This species is well described and 

 figured by Costa, whose name must be adopted, since the specific name 

 is four years prior to that of Bate ; and as regards the genus, Acaniho- 

 notus being preoccupied among the Fishes, and Vertumnus only a MS. 

 title, we must also take that of the Italian naturalist. 



Dexamine spinosa (Montagu). Out Skerries Harbour, Lerwick and Balta 

 Sounds, among Laminariae, always in shallow water. 



tenuicornis, Eathke. In similar localities to the last. 



Vedlomensis, Bate & Westwood. The type taken in Vidlom Voe in 



1861, since dredged in St. Magnus Bay, 60 fathoms ; and 5-8 miles oif 

 Balta, 40-50 fathoms. 



Atylus Swammerdamii (M. -Edwards) = Amphithoe compressa, Lilljeborg, 

 Ofvers. af K. Yet. Akad. Forhandl. 1852, p. 8. Bressay Sound and 

 Hills wick, among seaweeds. 



gibbosus, Bate. An interesting species on account of the peculiar cha- 

 racter of the carpi of the pereiopoda. It appears constantly to live 

 parasitic in sponges (ffalichondria panacea chiefly) between tide-marks 

 and in shallow water. Abundant in Burrafirth Caves, also Balta Sound, 

 Out Skerries Harbour, &c. 



bispinosus, Bate. St. Magnus Bay, in 50 fathoms. 



macer, n. sp. Pleon having the posterior margin of the first five seg- 

 ments serrated right across the back, with a larger central hastate 

 tooth, which increases in size from the first to the fourth segment, 

 where it attains its greatest development. All the members of the body 

 unusually long and slender ; pereiopods excessively long and delicate ; 

 basos of posterior pairs narrow ; meros and carpus both very long, the 

 former the longer, and both longer than the long propodos ; nail very 

 slender (half as long as propodos), with a single seta beyond the middle 

 of the inner margin. IJropods very long, the last pair with peduncle 

 and rami subequal, the whole organ as long as four segments of pleon 

 (i. e. third to sixth). First gnathopods the longer, second the stouter ; 

 in both pairs the hand shorter than wrist, and the palm undefined. 

 Telson deeply sulcated. Length a quarter of an inch. St. Magnus 

 Bay, muddy bottom, 60 fathoms, 1867. The eye in this species is 

 situated unusually low down and opposite the base of the inferior an- 

 tennas ; the antennae are broken off in my specimens. The slenderness 

 of the anterior pereiopods is very remarkable. 



Pherusa bicuspis (Kroyer) . Amphithoe bicuspis, Kro'yer, Gronlands Amphip. 

 p. 273, pi. ii. fig. 10. Balta Sound, 5 fathoms ; and Bressay Sound, 

 3-7 fathoms. 



fucicola, Leach. Out Skerries Harbour, 3-5 fathoms, 1861. 



Calliopius Ossiani (Bate). One mile north of Whalsey Lighthouse, 40 fa- 



