Geographical Distiibution of Uiiibellularia. 313 



Uinbellularia T/iomsotiii, Kcill., was fouiicl in the Atlantic 

 tliree times : — 



1. Between Cape St. Vincent and Madeira, in lat. 35° 20' N., 

 long. 134|° W., at a depth of 2125 fathoms. Tiic speci- 

 men is tlie largest that has been found ; length, according to 

 Kolliker, 89'5 centims. 



2. 300 miles to the eastward of St. Paul's rocks, lat. 1° 47' N., 

 long. 24° 26' W., at a depth of 1850 fathoms. This is the 

 smaller specimen which was sent to Prof. Kolliker, who says 

 it has a length of 27 centims. 



3. On the coast of Brazil, off the mouth of the San Fran- 

 cisco river, lat. 10° 11' S., long. 35° 22' W., in 1600 fathoms. 

 A half-grown specimen. 



In the Antarctic sea we brought up live times different 

 stages of an Uinbellularia which is very much like the 

 Atlantic species ; but whether it is the same or not could 

 not be decided, as the specimens of the latter had already 

 been sent to Europe. The Antarctic species was found in 

 the following localities : — 



1. Halfway between Prince Edward's and Crozet Islands, 

 lat. 46° 46' S., long. 45° 31' E., at a depth of 1375 fathoms. 

 A half-grown specimen. 



2. 84 miles to the westward of Hog Island (Crozets), lat. 

 46^16' S., long. 48°27'E., at a depth of 1600 fathoms. A 

 full-grown specimen of nearly the same size as the first one 

 found in tlie Atlantic. 



3. Near the ice-barrier, lat. 62° 2Q' S., long. 95°44'E., at 

 a depth of 1975 fathoms. Several very small and middle- 

 sized specimens, some of which will be described hereafter. 



4. On our way from the ice-barrier to the north, lat. 53° 

 55' S., long. 108° 35' E., at a depth of 1950 fathoms. Rather 

 small specimens. 



5. South of Australia, lat. 42°42'S., long. 34° 10' E., at a 

 depth of 2600 fathoms. Middle-sized specimens. 



We also found an Umbelhdaria in the Pacific^ at a depth of 

 2440 fathoms, to the south-west of the Louisiade archipelago, 

 where two specimens were brought up, which very likely are 

 different from all those which we got before, as the polyps 

 appeared to be more flattened, wider, and shorter. 



During our cruise through the Malayan archipelago none 

 of these Pennatulids came up. 



According to these data, Umbellularia was never found by 

 the 'Challenger ' in such comparatively shallow water as that 

 in which it has been obtained off the coasts of Greenland. 

 In the neighbourhood of the Antarctic islands it was often 

 found in very deep, never in shallow water. 



