1897.] ox THE PLAXKTOIir OF THE FAEEOE CHANJfEL. 523 



2. Contributions to our Knowledge of the Plankton of the 

 Faeroe Channel. — No. II. By G. Herbert Fowler, 

 B.A.J Ph. D.J Assistant Professor of Zoology, University 

 CoUege, London. 



[Eeceived March 29, 1897.] 



The following notes form a continuation of the previous paper 

 on this subject (see P. Z. S. 1896, p. 991) :— 



Cois'CHCECiA MAXIMA (Brady & Norman). 



Twenty-five specimens, apparently referable to this Ostracod, 

 were obtained in deep-water hauls. It occurred in three hauls 

 at depths between -180 and 220 fathoms, and in three hauls which 

 began at depths greater than 300 fathoms and were finished at the 

 surface ; it did not occur in a single one of the twenty-two surface 

 hauls (100 fathoms or less, to the surface). 



The only other occurrences of this species are recorded by Brady 

 and Norman ' as " off Greenland m lat. 74° 49' N., long. 11°"30' W., 

 in a depth of 350 fathoms, and by H.M.S. 'Triton' in 1882, 

 lat. 60° 20' N., long. 7° 23' W., in 200 fathoms, cold area, Faroe 

 Channel." Mr. John Murray, who supplied these specimens to 

 Mr. Brady and Canon Norman, has kindly informed me that the 

 Greenland specimens " were brought home by Mr. Gray in a 

 Peterhead whaler a few years ago." 



So far as the three records go, there can be little doubt that in 

 Conchoecia maxima we have a true member of the cold Mesoplank- 

 tonic fauna. The lowest depth and temperatures at which it was 

 captured on the ' Research ' were ^ : — 



Sta. 13^.-465 to 335 fathoms ; temp. 31° to 33° Fahr. 



Sta. 19 a.— 480 to 350 fathoms ; temp. 46° to 47° Fahr. 



ToMOPTEEis oiascrFOEMis, Eschscholtz. 



Vejdovsky ' recognizes three European species of Tomopteris : — 

 onisciformis (Eschscholtz ''), vitrina (Veidovsk^" ^), and scolopendra 

 (Keferstein °). His diagnostic characters, however, seem quite 

 inadequate for sharp distinction, and fall in all probability within 

 the limits of individual variation, excepting in the case of the 

 " Flossenaugen," the remarkable structures which have been 

 variously interpreted as eyes or as phosphorescent organs. 

 According to Vejdovsk^' these are arranged as foUows : — 

 Vitrina, Vej. — One on the notopodium, one on the neuropodium; 

 pigment yellow ; one lens. 



1 Sci. Trans. Eoy. Dublin Society, (ii.) v. 687, pi. bd. figa. 1-8, 



2 Cf. Proc. Zool. Soc. 1896, p. 993 note. 

 ^ Zeitschrift wiss. Zoologie, xxxi. p. 81. 



* iBis, 1825, p. 735. 



' Arch. Anat. Physiol., 1861, p. 360. 



