22 



Koh Kahdat in about 2 fathoms water. 



Area: Common almost everywhere except in the arctic and antarctic 

 regions. 



Dermatolithon Fosl. 



8. D. pustulatum (Lamour.) Fosl. ! ) 



List of Lith. p. 11; Melobesia pustulata Lamour. Polyp, flex. p. 315. Rosan. 

 Mélob. p. 72. 



Koh Kahdat, in 1—2 fathoms water. 



Area: Rather common almost everywhere except in the arctic and an- 

 tarctic regions. 



Amphiroa Lamour 1 ). 



9. A. fragilissima (L.) Lamour. 



Polyp, flex. p. 298: Corallina fragilissima L. Svst. nat. ed. 12. vol. 1, 

 p. 1305; Ell. et Sol. Zooph. p. 123. 



Koh Lorn and Koh Chick, on coral-reefs in shallow Avater. 

 Area: Common in all warmer seas. 



Corallina (Tournf.) Lamour 1 ). 



10. C. (Jania) tenella Kütz. 

 Tab. Phyc. vol.8, p. 41, t. 85, II. 



It is a question whether this species is not but a very thin form of 

 the much varying C. {Jania) rubens which is common everywhere. 



Koh Lorn and Koh Chick, on coral-reefs in shallow water. 

 Area: The Mediterranean, Mexico, Samoa and Fidji Islds. 



x ) Auetore Th. Reinbold. 



