OF THE MALDIVE AND LACOADIVE ISLANDS. 477 
8. TURBINARIA DECURRENS, Bory. 
Minikoi, Laccadive Islands. From sand-flat of lagoon near 
lighthouse. 
Geogr. Distr. From the Red Sea, through the Indian Ocean, 
to China and Australia. 
9. T. ornata, J. Agh. 
Minikoi, Laccadive Islands. With Sargassum duplicatum and 
Gelidium rigidum. 
Geogr. Distr. Indian Ocean, Pacific, New Zealand. 
10. HaLiseris DELICATULA, Agh. 
Suvadiva Atoll, Maldive Islands. From muddy sand at 
43 fathoms. 
Geogr. Distr. Warm Atlantic, Indian Ocean, Pacific, Cape of 
Good Hope. 
11. Drorvorsa Barrayrestana, Lame. 
Addu Atoll], Maldive Islands. In passage, 25 fathoms; hard 
bottom. 
Geogr. Distr. Warm Atlantic, Indian Ocean, Australia. 
12. Ratrsta verrucosa, Aresch. Sterile. 
Minikoi, Laccadive Islands. This is the commonest growth 
by the sides of the fissures, where it sometimes forms masses 
several yards across. Colour black-green. 
Geogr. Distr. Baltic, Mediterranean, Atlantic, Pacific, Cape 
of Good Hope. 
13. R. ceynanrcsa, Harv. (Pl. 13. figs. 1-4.) 
Minikoi, Laccadive Islands. From outer reef near edge, close 
to the south of the atoll. 
Geogr. Distr. Indian Ocean. 
This species has apparently never been described, though an 
authentic specimen of it is preserved in the British Museum 
Herbarium. With this specimen I have compared the Laccadive 
plant, and find it identical. I can find no fruit on either 
specimen, and am therefore able to give here a diagnosis of the 
sterile plant only. ; 
Ralfsia ceylanica, Harvey, in Herb. Mus. Brit. Crusta medio- 
criter tenui, 25 mm. vel plus lata; tota pagina inferiore filis 
articulatis moniliformibus numerosis ad matricem calcaream arcte 
adherenti ; (sectione transversali) e stratis horizontalibus pluri- 
202 
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