50 Observations on Living Polyzoa. 



pigment cells ; a mass of whitish, granular matter in cell 

 visible through the back of the cell when fresh. 



G. geminata — Colour, pink ; 12 tentacles. 

 ■ G carinata — Colour, bright lemon yellow. 



Scmqoocellaria scrupea — Colour, pink ; 16 tentacles. 

 Observed vibracula in motion. 



S. omithorhynchus — Colour, pink ; 12 tentacles. 



Emma tricellata — Colour, pink ; 12 tentacles. 



E. crystallina — Colour, pink. 



E. cyathus — Colour, orange. 



Canda arachnoides — Colour, bright orange ; 16 tentacles. 

 Observed some delicate setae springing from avicularia move. 



Salicornaria hirsuta, — Colour, delicate pink ; 16 tentacles ; 

 ovicells full of scarlet ova. 



S. farciminoides — Colour, pink. 



Onchopora hirsuta — Colour, pink. 



Seruparia chelata — Colour, whitey brown ; 10 tentacles. 



Caberea Boryi — Colour, orange ; 16 tentacles ; vibracula 

 very active. 



G. lata (?) — Colour, orange ; 16 tentacles. 



Bicellaria ciliata, — White in colour; 16 tentacles ; avicu- 

 laria in constant motion ; ovicells with small globular mass 

 of orange OA^a. 



Bugula dentata — Bluish green colour; 16 tentacles. A 

 very beautiful species. Minute dark green, almost black, 

 pigment cells ; animal very lively ; avicularia opened and 

 shut freely, and waved about. 



B. cucidlata — Colour, light brown ; 12 tentacles ; ovicells, 

 globose when alive ; not cucullate, but became so on drying. 



Flustra denticulata — Colour, light pink; 16 tentacles. 



Garbasea cyathiformis — Nearly colourless; 16 tentacles; 

 ova in ordinary cells. 



G. pisciformis — Colour, orange ; 20 tentacles ; very long 

 and slender ; ova in ordinary cells ; ovicells with scarlet 

 granular mass of ova. 



G djissimilis — Colour, bright orange. 



Diachoris magellanica — Light brown colour; avicularia 

 moved. 



D. spinigera — Very light brown in colour ; avicularia 

 moved ; animal did not expand, but showed in mounted 

 specimens apparently 20 tentacles. 



Didymia simplex — Delicate rose pink colour; ovicells 

 with red ova ; animal did not expand, but noticed particles 

 moving about in perigastric space. 



