20 DISCOVERY REPORTS 



St. 1298. 69° 157' S, 125° 56-3' W. 



Stns WS 21, WS 22, WS 29, WS 57, WS 60, WS 61, WS 330, near South Georgia. St. WS 557, east of South 



Sandwich Islands. (For details, see Table I.) 

 Most of the 20 specimens are in excellent condition and confirm in every respect Browne's detailed 

 description, except in the regular alternation of large tentacles and small marginal bulbs. These latter 

 are seen in diflFerent stages of development into tentacles, and they are irregularly distributed among 

 the fully developed tentacles. Two of the specimens are somewhat larger than any known up to now; 

 they were collected at St. 727, near the south point of South America. One of them is 36 mm. high 

 and 32 mm. in diameter, with 24 large tentacles and no small ones; the other specimen is 37 mm. high 

 and wide, with 32 large tentacles and 10 small ones, irregularly distributed. Both specimens contain 

 numerous eggs. The lateral diverticula of the radial canals are so long that they meet in the interradii, 

 but they never fuse. 



In small specimens, 5-6 mm. high, the diameter is about equal to the height; in medium-sized 

 specimens, 8-18 mm. high, the umbrella is usually considerably higher than wide; variations in the 

 ratio may be due to contraction during preservation. Again, in large specimens the diameter increases 

 in proportion to the height; two specimens, 20-21 mm. high, are 23 mm. and 22 mm. wide and, as 

 mentioned above, the two very large specimens from St. 727 are about as wide as high. 



The majority of the specimens were collected in the neighbourhood of South Georgia in the summer 

 months of November to February ; they vary in size as follows : 



Month Nov. Dec. Jan. Feb. 



Height (mm.) 8-9 5-16 10-21 10-20 



There is an indication that young specimens appear at the beginning of the summer and increase 

 in size during the succeeding months, but the two very large specimens (St. 727) were taken in 

 November 193 1. Two specimens taken at St. 1298 on 2 March 1934 in the Pacific sector of the 

 Antarctic are 14 mm. high and 8-10 mm. wide. 



Distribution. Previously recorded from McMurdo Sound and Cape Adare (Browne) and from 

 the Gauss Station (VanhoflFen). These records, in conjunction with those of the Discovery collections, 

 indicate that this species has a circumpolar distribution in the antarctic seas. 



Pandeidae spp. indeterminatae 



Occurrence: St. 208. 7. iv. 27. 62° 49' 30" S, 60° 10' 30" W. Off Livingston Island, South Shetland. Net: 



TYF 8oo(-o) m. i specimen. 

 St. 707. 22. X. 31. 06° 44' S, 33° 33' W. Net: TYFB 182-0 m. i specimen. 

 St. 708. 23. X. 31. 10° 20' 36" S, 34° 54' 42" W. Net: TYFB 208-0 m. i specimen. 

 St. 709. 24. X. 31. 14° 01' 24" S, 36° 30' 42" W. Net: TYFB 216-0 m. i specimen. 

 St. 1585. I. V. 35. 00° 06' S, 49° 45' 24" E. Net: TYFB 500-0 m. i specimen. 



Young and more or less mutilated specimens which could not be identified beyond referring them to 

 this family were collected at the above localities. 



Family Calycopsidae 



Calycopsis borchgrevinki (Browne 19 10) 



(Text-fig. 4) 



1910 Sibogita borchgrevinki Browne, p. 17. PI. 2, figs. 1-5. 



191 1 Calycopsis borchgrevinki Vanhoffen, p. 215. PI. 22, fig. 7, text-fig. loa, b. 

 1912a Calycopsis borchgrevinki Vanhoffen, p. 364. 



