1914] 



Setchell: The Schmia Assemblage 



131 



Pacific Ocean can count thirteen species distributed through all the 

 genera recognized. The Indian Ocean strictly limited has one species, 

 but if we include, as seems natural. South Africa and the Philippine 

 Islands, it has four species in two genera. Taken by zones, there is 

 none of the species reported as occurring in the frigid zones or even 

 much below 15° C of temperature of surface watei-s, except possibly 

 one species (Gloiophloea confusa) ; the tropical zone has two species, 

 the warmer temperate or subtropical zones have ten in the north and 

 six in the south. 



In regard to temperature ranges of the different species, it may be 

 well to state our present knowledge. Two species, at least, endure a 

 low winter temperature (down to 5° C or below in the case of Scinaia 

 furcellata) but are probably seasonal in their appearance (at least in 

 Scinaia furcellata). It seems probable that the other species are at 

 least more vigorous in summer than in winter, even though they do 



