984 



MR A. PRINGLE JAMESON ON THE 



body, there being only 3 mm. of the fin on the tail. As the fins are rather badly 

 damaged it is impossible to be quite certain of the accuracy of these measurements, and 

 no idea of the breadth of the fins can be formed. The jaws are 3 mm. long. The 

 reproductive organs are prominent, but they do not seem to be quite mature ; the 

 ovaries extend forward for a length of 16 mm. 



Horizontal distribution: 39° 48' S., 2° 33' E. (depth 2772 fathoms), Station 468. 

 71° 22' S., 18° 15' W. (depth 2370 fathoms), Station 416. 



Vertical distribution : surface (3 fathoms) — 2772 fathoms. 



Temperature range: 31°-41°'8 F. (only 3 records). 



Most of the specimens were obtained from deep water ranging in depth from 

 600-2772 fathoms. In Scotia Bay, South Orkneys, Station 325, one medium-sized 

 specimen was obtained in a tow-net at 3-10 fathoms; while on Burdwood Bank, 

 Station 346, another medium-sized specimen was obtained from 56 fathoms. These 

 are the only "surface-water" records ; all the rest, as far as data are given, are from 

 deep water, and with one exception were from south of 50° S. 



Sagitta maxima (Conant). 



Two specimens which seem to be referable to this species were obtained, one in the 

 trawl, the other in a vertical net. The tail-percentage and the number of jaws are a 

 little lower than those usually given for this species, but otherwise these two specimens 

 agree very closely with the descriptions of S. maxima. The somewhat widely 

 separated, slightly curved anterior teeth, the prominent vestibular ridge with large 

 mammiform papillse, the fins without fin rays in the inner portions, and the very 

 considerable distance between the anus and the tail septum, all seem to be minor 

 features which taken together are characteristic of the species and help considerably 

 in its identification. 



Length. 



Tail- 

 percentage. 



Jaws. 



Ant. Teeth. 



Post. Teeth. 



53 

 39 



18 

 21 



5 



5 



6 



6 



7 



The vertical plankton-net haul was made at Station 414, 71° 50' S., 23° 30' W., and 

 the net was lowered to a depth of 1000 fathoms and raised to the surface. The 

 dredged specimen was obtained from Station 450, 48° 00' S., 9° 50' W., at a depth of 

 1332 fathoms. 



Sagitta enjiata (Grassi). 



This very typical tropical and sub-tropical species was obtained from twenty-nine 

 stations distributed over the warmer parts of the Atlantic. It was rather interesting 



