38 EEV. T. E. E. STEEBING— BISCATAN PLANKTOIV: 



20. EUTHEMISTO COMPUESSA (Goes). 



1866. Themisto compressa. Goes, Ofversigt K. Vet.-Akad. Forhandl. (Stockholm) for 1865, p. 533 

 (17),pl. 41. figs. 34, 34". 



1889. Euthemisto compressa, Bovallius, K. Svenska Vet.-Akad. Handlingar, Bd. xxii. No. 7, p. 305, 



pi. 12. figs. 45-57, pi. 13. figs. 32-43. 



1890. Euthemisto compressa, Sars, Crustacea of Norway, vol. i. p. 12, pi. 5. fig. 2. 



1900. Euthemisto compressa, Chevreux, Amplupodes de THirondelle, p. 146. 



1901. Euthemisto compressa, Vosseler, Amphipoden der Plankton-Exp. p. 81, pi. 8. figs. 11-17. 



Bovallius makes Themisto hispinosa, Boeck, a synonym of this species, while Sars, 

 Chevreux, and Vosseler keeji them apart. It should be noted that in Vosseler's ' Tafel- 

 Erkliirung ' the numbering of the figures of these two species is transposed. Sars in 

 1895 [op. cit. appendix, p. 673) identifies Euthemisto bisplnosa with Themisto crassicornis, 

 Kroyer. Tlie present collection contains only part of a specimen, ending with the third 

 pleon-segment, a female, measuring from the front of the head to end of fragment 7 mm. 

 It appears to be sharply carinate along perseon and pleon, but devoid of projecting dorsal 

 teeth. It has the character of the first three pairs of perseopods which the figures of 

 Sars and Vosseler show to be distinctive of E. compressa from E. liispi)wsa. 



Occurrence : 32 d. 100 to fathoms. 1 specimen. 



Fam. Phkosinid^. 



Primno, Guerin, 1836. 



1836. Primno, Guerin, Magasin de Zoologie, vol. vi. Classe 7, p. 2. 



1887. Primno, Bovallius, Biliang till K. Svenska Vet.-Akad. Handlingar, Bd. xi. No. 16, p. 28. 



1888. Primno, Stebbing, 'Challenger' Amphipoda, Reports, vol. xxix. pp. 164, 1440. 



1889. Euprimno, Bovallius, K. Svenska Vet.-Akad. Handlingar, Bd. xxii. No. 7, p. 397. 



1900. Euprimno, Chevreux, Amphipodes de I'Hirondelle, p. 148. 



1901. Euprimno, Vosseler, Amphipoden der Plankton-Expedition, p. 87. 



Bovallius substituted Euprimno for the name given by Guerin, " because Frimno Avas 

 previously applied to a genus of Crustacea by Rafinesque-Schmaltz in 1814." It is true 

 that the eccentric author referred to, in his ' Precis de ses decouvertes,' at the date 

 named, mentioned along with several others a species Frimno lutescens included in his 

 " Pam. Aselotia and Oniscia." But he did not define the genus. He did not figure or 

 describe the species. He did not even say to which of the two indeterminate families 

 the genus belonged. It is evident, therefore, that Hafinesque's Primno is of no scientific 

 importance, and has no claim to supersede the legitimate use of the name by Guerin. 



21. Primno macropa, Guerin. 



1836. Primno macropa, Guerin, Magasin de Zoologie, vol. vi. Classe 7, p. 4, pi. 17. fig. 1 a~f. 



1888. Primno macropa, Stebbing, ' Challenger' Amphipoda, Reports, vol. xxix. p. 1441, pi. 178. 



1889. Euprimno macropus, Bovallius, K. Svenska Vet.-Akad. Handlingar, p. 400, pi. 17. figs. 23-40, 



pi. 18. figs. 1, 2. 

 1900. Euprimno macropus, Chevreux, Amphipodes dc I'Hirondelle, p. 148. 



