592 



ASCIDIIDJ5. 



The species range from low-water to thirty fathoms. 

 They are frequently found associated in groups of numerous 

 individuals, and their tests, even in the same species, are 

 often variously coloured. The sub-genus Dendro'doa closely 

 agrees with Cynthia in its branchial reticulations and its 

 digestive apparatus, but of the two ovaries possessed by 

 Cynthia, only one, and that the left, is found in Dendrodoa, 

 whilst the right ovary alone is present in Pandocia. In 

 the form Peru of Stimpson the oral orifice is six-lobed 

 and the anal four-lobed. 



Species of Cynthia. 



aggregata, Rathke. 

 amphora, Gould. 

 ampulla, Brug. 

 Cauopus, Sav. 

 claudicans, Sav. 

 Dione, Sav. 

 grossularia, Van Ben. 

 gutta, Stimp. 

 informis, Forbes. 

 limacina, Forbes. 

 mamillaris, Pallas. 

 microcosmus, Sav. 



morus, Forbes. 

 papillosa, Finn. 

 partita, Stimp. 

 polycarpa, Sav. 

 pomaria, Sav. 

 quadrangularis, Forbes. 

 quadridentata, Sav. 

 rustica, Linn. 

 subceerulea, Stimp. 

 tessellata, Forbes. 

 tuberosa, Macgilliv. 

 vittata, Stimp. 



Sub-geu. dendkodoa, Mac Leay. 



Body sub-cylindrical, sessile; test smooth, coriaceous ; orifices 

 terminal, minute, iudistinctly qudarifid. Ovary single, on the 

 left side. 



glandaria, Mac Leay. 



