34 



Part first. 



Tunicates (p. 84). Salps. Each animal consists of a transparent 

 swimming" barrel (fig. 93), from one to eight inches long; 

 it is easily recognised by the globular brown kernel in 

 one corner ; often the salps adhere side by side to form 

 chains (^fig. 94 and 95;. *Pyrosoma (tig. 96j, a transparent 

 frothy cylinder up to eight inches by three. 



Fig. 93. Single individual of Salpa maxima-africana, 



Vg nat. size, p 86. 



Fig. 95. Chain ot 



Salpa pinnata, 



'/g nat. size, 



p. 86. 



Fig. 94. Chain of Salpa maxima-africana, 

 '/j nat. size. p. 86. 



Fig. 96. Pyrosoma elegans, 

 */2 nat. size. p. 85. 



