84 DISCOVERY REPORTS 



from the Mediterranean. This might lead to the supposition that these two species were identical. 

 They are certainly very similar in general appearance, but according to Gegenbaur's description and 

 figure the gastric pouches in lativentris are narrow at their base and widening outwards. Apart from 

 the studies on the marginal sense organs by O. & R. Hertwig (1879), no descriptions and no figures 

 of this species have been given since those by Gegenbaur. Owing to the apparent difference in the 

 shape of the gastric pouches I think we should provisionally keep the two species apart, until renewed 

 examination of the Mediterranean medusa has shown whether the characteristic outline of the pouches 

 in lativentris is a constant feature. I feel sure that Bigelow was right in referring his specimens to 

 C. globosa Eschscholtz, and I feel equally sure that the specimens collected off South Africa by 

 'Discovery' belong to the same species. 



I am not convinced of the correctness of the identification of specimens from the North Atlantic 

 as C. lativentris by Damas (1936); they are referred to that species, because they had 8-12 tentacles, 

 broad gastric pouches, and a peripheral canal, but no other details are given. 



Distribution. Tropical Pacific, about 180° W near the equator (Eschscholtz); Pacific coast of 

 Mexico (Bigelow). Now for the first time recorded from the Atlantic. 



Cunina peregrina Bigelow 1909 



(Text-fig. 15) 



1909 Cunina peregrina Bigelow, p. 59. PL i, fig. 6; PI. 15, figs. 1-2; PI. 28, figs. 1-7; PI. 45, fig. 8. 

 1918 Cunina peregrina Bigelow, p. 393. 

 1928 Cunina peregrina Uchida, p. 87. 

 1948a Cunina peregrina Kramp, p. 18. 

 1955 Cunina peregrina Kramp, p. 282. 



Occurrence: 8103677,697,699,701, 707, 1371, 1374, 1576, 1770, 2067. (For details of position, date, etc., see 

 Table i, p. no.) 



Most of the localities are scattered over the Atlantic Ocean from south-west of the Canary Islands to 

 the latitude of the Cape of Good Hope. Stns 1371 and 1374 are off the south-east coast of Africa, 

 St. 1576 near Mozambique on the east coast of Africa (see chart, Text-fig. 15). Moreover, I have seen 

 a specimen in the British Museum (Nat. Hist.), taken south-east of Africa, in 35° 00' S, 46° 36' E 

 (29. iv. 1937); it was labelled ? Solmaris sp. 



The collection contains 31 specimens of this characteristic species, which was so well described 

 by Bigelow (1909) that it cannot be mistaken, except when the number of tentacles is particularly 

 small, about 8. I have recently pointed out how, in such cases, it may be distinguished from 

 C. octonaria, which is also destitute of peripheral canals. 



The number of tentacles and marginal lappets in relation to diameter of the umbrella in the present 

 collection may be summarized as follows : 



No. of tentacles 



The smallest specimens are 4 mm. in diameter, one with 8, two with 1 1 tentacles. The largest speci- 

 men is 13 mm. wide with 12 tentacles. Among the specimens 6-10 mm. wide one has 7 tentacles and 

 one has as many as 14, in the others the number varies from 10 to 12, and most of them have 12. 



