348 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



Familxj PASIPHAEIDAE. 

 Genus Pasiphaea, Savigny. 



PASIPHAEA SIVADO. 



Alpheus sivado, Risso, Crust, de Nice p. 93, tab. iii., fig. 4. 

 Pasiphaea ,, Risso, Hist. Nat. de TEur. Mer. v., p. 81. — 

 M. Edw., Hist. Nat. des Crust, ii., p. 426.— Bell, Brit. Crust, p. 312. 

 Pasiphaea Savignyi, M. Edw., Hist. Nat. des Crust, ii., p. 426. 

 ,, brevirostris, M. Edw., I.e. p. 426. 



Four specimens off Skate Is., Loch Fyne, 105 

 fathoms, mud; one of these measures 4 inches in 

 length, and two others are scarcely inferior in size. 

 During life they were translucent and of a pinkish 

 white colour, mottled with red on the limbs, 

 abdominal segments, and telson. 



SCHIZOPODA. 



Family EUPHAUSIIDAE. 



Genus Nyctiphanes, G. O. Sars. 



Nyctiphanes, G. O. Sars, Prelim. Notices Challenger Schizo- 

 poda, Christiania Vidensk.-Selsk. Forhandl., 1883, No. 7, p. 23. 



NYCTIPHANES NORVEGICA. 



Thysanopoda iiorvegica, M. Sars, Videnskabs Selsk. Forhandl., 

 1863, p. 2. 

 Nyctiphanes norvegica, G. O. Sars, I.e. p. 23, 1883. 



Abundant and fine everywhere in deep water, on 

 a muddy bottom, as far up as Loch Goil ; more rarely 

 in shallow water, under 20 fathoms. The great 

 majority of our specimens were taken on the 

 bottom, very few occurring in the deep tow-nets, 

 and only a few small and immature forms in the 

 surface-net at night. We are inclined to think that 

 this species may prove to be a true bottom form, 

 spending its existence in the surface waters up to 

 a comparatively advanced stage of growth. Young 

 specimens are not uncommon in the Firth of Forth 

 at the surface, especially in winter and spring ; and 

 it was taken abundantly in the same condition by 

 Mr. Murray during the cruise of H.M.S. "Triton" in 



