It is also Ilyperia LatreiUei* H. Milne-Edwards, and 

 Hyperia medusarum, Boeck (nee Muller). 



Plymouth, abundant (Bate} ; Plymouth, 1880 (A.M.X.). 



EUTHEMISTO GRACILIPKS (Norman). 



1SC3. Hyperia oblivia, Bate & Westwood, vol. ii. p. 16 (not 



If. oblivia, Kroyer). 



1869. Hyperia gracilipea, Norman, "Last Report Dredging Shet- 

 land," Brit. Assoc. Rep. for 1868, p. 287. 

 1887. Parathemisto lomjipcs, Bovallins, "Syst. List, of Amphip. 



Hyperiidea," Bihang t. K. Sv. Vet.-Akad. Handl. vol. xi. no. 16, 



p. 21. 

 1889. Parathemisto gracilipes, Bovallius, " Contrib. to Monog. of 



Amphip. Hyperiidea," K. Sv. Vet.-Akad. Handl. vol. xxii. no. 7, 



p. 368. 

 1900. Parathemisto yraci/ipes, Norman, " British Amphipoda of 



the Tribe Hyperiidea. &c.," Ann. & Mag. Nat. Hist. ser. 7, vol. v. 



p. 131. 



A Hyperid which Dr. Gough has taken in the tow-net off 

 the coasts of Devon and Cornwall at all times of the year, 

 which A. M. N. has also seen from the West of Scotland, 

 is the form apparently figured by Bate, though his figure of 

 the gnathopod is incorrect. We have been much puzzled as 

 to whether it should be regarded as a small race of EutJiemisto 

 compressa, or as a distinct species. It nearly approaches 

 this last-named species in the form of the carpus of the 

 first two pairs of legs and other particulars. Ihe obvious 

 differences are the total absence of any sign of the dorsal 

 spination characteristic of Euthemisto compressa, Goes 

 (= Lestrigonus ffiinidorsalis, Bate), and its very small size 

 (we have not seen any specimens that exceeded mm. length), 

 i. e. half the length which is usual in E, compressa, and 

 Bate gives the length as one-fifth of an inch. Whether it 

 is really a species or not, it is at least worthy of a varietal 

 name as being a southern form of its northern brother. The 

 differences between the genera Parathemisto and Euthemisto 

 are very slight. E. compressa is a connecting link. 



HyrEROCHE TAURIFORMIS (Bate & Westwood). 



1838. Metoecus mechisamm, Krciyer, Grbnlands Amfipoder, p. 288, 

 pi. iii. fig. 15. 



1869. Metoecus meditsarum, Norman, " Last Report Dredging Shet- 

 land," Brit. Assoc. Eep. for 1868, p. 287. 



1869. Ilyperia taunfonnis, Bate & Westwood, vol. ii. p. 519. 



1872. Tuuria medusarum and T. abyssorum, Boeck, 1. c. pp. 82 & 83, 

 pi. i. fig. 2. 



1889. Hyperoche Kroyeri, Bovallius, "Contrib. to Monograph of 

 Amphipoda Hyperiidea," p. 87; Hyperoche abyssorum, p. 94; 

 Hyperocke Lutkeni, p. 97, pi. vii. tigs. 1-26; and Hyperoche 

 tanriformis, p. 115. 



