70 EDITH M. PRATT, B.SC. 



It is interesting to note that the only known northern habitat of 

 these two species is the Mediterranean. 



The following species is the only one which occurs in north and 

 south temperate and cold seas, and in the tropics (Florida). 



Smittia landsborovii, on shell (Trophonmuriciformis). 



Habitat : Britain. Florida. Greenland. South Africa. 



Falklands. Australia. Arctic Seas. Davis Strait. 

 Fossil — var. crystallina — Scottish glacial deposits. 

 The following species occur only in the southern hemisphere : — 

 I. Beania costata, on weed, in shallow water. 



Habitat : Australia. Kerguelen. Cape Horn. Falklands. 

 II. Cellaria malvinensis, erect, in fairly shallow water. 



Habitat: Petane (New Zealand). Strait of Magellan. 45 

 fath. South Patagonia. Victoria (Australia). Kerguelen. 

 Marion Island. New Hebrides (S. Pacific), 70 fath. Cape 

 Horn. Falklands. Fossil in tertiary of New Zealand. 



III. Gellepora pumicosa, var. eatonensis, among debris, and en- 



crusting shell. 

 Habitat: Kerguelen, 28 fath. and 45-127 fath. W. of S. 

 America, 45° 31' S., 78° 9' W. Falklands. 



IV. Micropora unci f era, on weed. 



Habitat : Mid South Atlantic. Tristan D'Acunha. Night- 

 ingale Island, Inaccessible Island. Cape Horn. 

 V. Cribrilina labiosa, on shells (Mytilus magellanicus and Tere- 

 bratula). 



Habitat : Falkland. Simon's Bay (Cape of Good Hope). 

 VI. Cribrilina monoceros, on Mytilus edulis. 



Recorded from : — ■ 



Mid N. Pacific, 3,125 fath. Australia, 35 fath. New 

 Zealand. Marion Island. Strait of Magellan, 175 fath. 

 Between Strait of Magellan and Falklands. Bass Strait. 

 Cape Horn. Falklands, 12 fath. 



Fossil : tertiary deposits. Bairnside, Victoria (Australia). 

 Napier and Petane (New Zealand). 

 VII. Mucrovella tricuspis, on shell (Mytilus ungulatus). 



Habitat: Australia, 38 fath. Simon's Bay (Cape of Good 

 Hope). Prince Edward Island. Tierra del Fuego. 

 Chiloe. Falklands, 5-12 fath. S. America. 



