Canon A. M. Norman on British Amphipoda. 205 



18 fathoms" (Z?. R.). These are the specimens which were 

 recorded in Dr. Robertson's first paper as " Anonyx serratus.^^ 

 This is the only record of the species as British. 



Distrib. Trondhjem Fiord, Norway (^A. M. N.) ; Malangen 

 Fiord, West Finmark (/. S. Schneider) : Mus. Nor. Siberian 

 Polar Sea {Stuxberg). 



Genus 16. Tetphosella, J. Bonnier. 

 = Tryphosa, G. 0. Sars (non Tnjphosa, Boeck, typica). 



36. Tryphosella Sarsij J. Bonnier. 



1891. Tryphosa nana, G. 0. Sars (not Anonyx nanus, Kr.), (142) p. 76, 



pi. xxvii. fig. 1. 

 1893. Tryphosella Sarsi, J. Bounier, I. c, p. 170, note. 



Hah. Bressay Sound, Shethind ; mouth of the Yealm, near 

 Plymoutii ; Clew Bay, Co. Mayo {A. M. N.) : Mus. Nor. 

 Puffin Island, North Wales, Menai Strait, and Jersey 

 {A. 0. W.); Upper Loch Fyne (T. *S'.). 



Distrib. South and west coasts of Norway {Sars). 



ol . Tryphosella Horingii (Boeck). 



1870. Tryphoia Horhujii, Boeck, (137) p. 38. 



1876. Tryphosa Hormgii, Boeck, (188) p. 182, pi. iv. fig. 4. 



1891. Tryphosa Horrinyii, G. 0. Sars, (142) p. 77, pi. xxvii. fig. 2. 



1893. Tryphosella Horringii, J. Bonnier, /. c. p. 171. 



Hab. It lias been recorded from the ambulacra! grooves 

 of starfish, Bull Bay, Anglesey [A. 0. W.) ; Loch Linnhe 

 {G. Brook) ; Futh of Forth {T. S.). 



Distrib. Trondhjem Fiord, Norway, 150 fathoms (A.M. N.) ; 

 Denmark {Copenhagen Mus.) : Mus. Nor. Sars speaks of it 

 as found in Norway and up to Lofoten generally in the region 

 of deep-sea corals in 50-150 fathoms. Bohuslan, Sweden 

 {Gunhilds Expedition j fide Sars). 



[Tryphosella abyssi, sp. n. (PI. VI. figs. 16-20.) 



Male. — In describing this form I shall take advantage of 

 the figures on Sars's pis. xxvii. and xxviii. for illustrations of 

 characters. Cephalon with lateral corners produced and acute 

 (as in Tryphosites) (fig. 16). Coxse of fourth segment of 

 mesosome (fig. 17) with the posterior projection completely 

 rounded above and below, those of fifth pair (fig. 18) as broad 

 as deep; these characters as in T. Sarsi; epimera of third 

 segment of metasome with the hinder corner well rounded 

 (fig. 19), without any indication of an angle. First segment 



