226 



DISCOVERY REPORTS 



The abbreviations used in denoting the nature of the bottom are : 



g. gravel. 



"When no addition is made to the figures in the depth column, it is always to be 

 understood that the tow-net or young-fish trawl was closed before hauling ; but when 

 such an expression as (-o) or (-50) follows the figure for depth, it is implied that the net, 

 though fishing for the time indicated at the major depth, was hauled open to the surface 

 or to a higher level." (Cited from Discovery Reports, i, p. 5.) 



The depths of the water at the beginning and at the end of trawling stations are 

 shown, as, e.g. St. 48, 105-115 m. 



GENERAL 



The Discovery collection of thoracic Cirripedes contains fifty-five different finds, 

 most of them from the Southern Ocean, grouped round the Falkland Islands, Cape 

 Horn, the South Shetlands, Palmer Archipelago, Elephant and Clarence Islands, South 

 Georgia, Tristan da Cunha, and the south and west coast of Africa. The most southerly 

 locality is 64° 58' S, 65° 35' W (St. 190), the most northerly 14° 45' N, 18° 34' W, the 

 most westerly St Martin's Cove, Hermite Island, Cape Horn (St. 222), and the most 

 easterly Durban on the east coast of South Africa — the only find from the Indian 

 Ocean. 



The number of species is shown in the following table : 



This table shows that the collection is not very rich in species ; but of some common 

 species, such as Conchoderma aiiritum, Coromda diadeffia and C. reginae, many specimens 

 were taken from different stations. Eight genera are represented. Most species (six) 

 belong to Scalpellum, of which genus many species have already been described, although 

 some are uncertain. Those in the present collection all seem to be well defined, and 

 three new species are here described. 



