138 Canon A. M. Norm:ui on British Ainphipodn. 



I/ah. All round our coasts in suitable places, among de- 

 caying weeds at high-water mark on sandy shores. 



Distn'b. The whole coasts of Europe from Norway south- 

 wards, extending to the Black Sea ; Azores {Ban-ois) ; 

 ^Madeira (Morelet). 



Genus 2. Hyale, Eathke. 

 { = Allorchestc$, Dana, c?, =Nicca, Nicolet, $ .) 



11. Ilyah Nilssom (Rathke). 



18G1. Allorchestcs Nilssinw\ Bate & Westwood, (1) vol. i. p. 40. 

 1890. Hijale Mlsso7ii, Sars, (142) p. 2G, pi. xi. fig-. 1. 



It is Vrchestia nidrosie.nsis uf Kroyer. 



Hub. Torquay [Stebbiyuj) ; St. Andrews (Mcintosh) ; Firth 

 of Clyde {D. li.) ; Bcrehaven, Ireland {Prof. IladJon) : Mus. 

 Nor. Jersey [Koehler) ; Firth of Forth and Loch Fyne 

 {T. S.) ; Liverpool district and Valentia, Ireland {A. 0. W.). 



Distn'b. Valencia, Spain {P. Aiitiga) ; Trondhjcm Fiord, 

 Norway {A. M. N.) : Mus. Nor. South and West Norway 

 (G. 0. Sa7-s) ; Sweden, Denmark, West France (Chevreux) ; 

 Azores {Barrois). 



12. Ilyah Lubbockiana (Bate). 



1861. AUorchestes imhricatus, Bate & Westwood, (1) vol. i. p. 43, (S . 

 1861. Nicea Luhhockiana, Bate & Westwood, (1) vol. i. p. 47, 5- 

 1876. Hyale Lulbockiamt, Stebbing, Ann. & Mag. Nat. Hist. ser. 4, 



vol. xvii. p. 337, pi. xviii. fig. 2 a-d. 

 1879. Hyale Luhbockiana, id. ibid. ser. 5, vol. iv. p. 396. 

 1890. Hyale Lubbockiana, Sars, (142) p. 27, pi. xi. fig. 2. 



There has been great confusion between the species of this 

 genus. Botck confused the two British species of Hyale, and 

 his figures of the entire animal of his Hyale Nilssoni, and of 

 the second gnathopod of the male, " undoubtedly," as Sars 

 says, represent H. Lubbockiana. 



Delia Valle, with Stebbing's and Sars's clear definitions of 

 the two species before him, actually makes the II. Lub- 

 bockiana of Sars a synonym of his H.pontica, Rathke, which 

 he makes =//. Nilssoni, Rathke, and keeps //. Ljubbockiana 

 of Bate and Stebbing as a species distinct from that of Sars ! 

 A glance with even a hand-lens at the propodos of the 

 pcrseopods of the true H. Lubbockiana is sufficient at once to 

 recognize the species on account of the two remarkable large 

 serrated spines with which it is armed. These spines are 

 shown in Bate and Westwood's figure k, in Stebbing's 

 fig. 2 c, in Sars's fig. 2, />. 7, aiid are even sufficiently indi- 

 cated in Boeck's small figure of the entire animal of his 

 " II. Prevoslii^'' to show that the figure really represents 

 II. Lubbockiana. On the other hand, it is clear that the 

 species described by Delia Valle as //. Lubbockiana cannot 



