90 PROCEEDINGS OP THE AMERICAN ACADEMY. 



seen were very scanty, but that is often the case in other species of the 

 genus. This seems to be the same as the R. Hookeriof Grunow, Novara, 

 37, aud his remarks on the Nicobar specimens apply equally to ours. 

 Hohenacker, 477, Chiloe, has cells rather longer and thinner. In spite 

 of the occasional rhizoid processes, it seems to me possible that this may 

 be an old, prostrate form of Chaetomorpha antennina (Bory) correspond- 

 ing to the similar form known in C. aerea. 



o 



Ulva (L.) Wittr. 



U. fasciata, Delil. Egypt, 153, PI. 158, f. 5 (1813). — Albemarle 

 Isl. : Tagus Cove, Feb. 1899, Snodgrass & Heller. Further distrib. 

 warmer parts of Atlantic and Pacific Oceans, Ceylon. 



PHAEOPHTCEAE* 



Carpomitra, Kiitz. 



C Cabrerae, Kiitz. Phyc. Gen. 343 (1843). Fucus Cabrera, 

 Clemente, Cat. 313 ; Turner, Hist. Fuc. PI. 140 (1811) ; Piccone (1), 

 40. — Chatham Isl. : Marcacci, ace. to Piccone, 1. c. Further distrib. 

 southern Eu., Africa. 



Fucodium, J. Ag. 



F. galapagense, Pice. & Grun. in Piccone (1), 40, t. 1, f. 1, t. 2, 

 f. 3, & (2), 22. — Charles and Chatham Ids.: Marcacci, ace. to 

 Piccone, 11. cc. Endemic. 



Glossophora, J. Ag. 



G. galapagensis, nov. sp. 



Frons usque 18 cm. longit., .6 cm. latit. linearis-elongata, saepe di- 

 chotoma, axillis apicibusque obtusis, margine distincte spinosa ; undique 



* DIATOMEAE. Many species of this order from the Galapagos Islands are 

 enumerated hy Ehrenberg (2), and the following are recorded by Cleve in his paper 

 On some new and little known Diatoms, Kongl. Svenska Vetensk. Akad. Handl. 

 xviii. no. 5, pp. 26, PI. I-VI, 1881. Mastogloia panduriformis, CI.; M.submarginata, 

 CI. & Grun. ; Navicula Eugeniae, CI. ; N. Hennedyi, var. undidata, CI. ; N. Hennedyi, 

 var. minuta, CI.; N. Platessa. CI.; N. Anderssonii, CI.; N. gallapagensis, CI.; N. 

 jugata, CI. ; Surirella degenerans, CI. ; S. formosa, CI.; Campylodiscus peramplus, CI. ; 

 Plagiogrammaspinosum,C\.; Rutilaria recens, CI.; Melosira tuberculosa, CI. ; Auliscus 

 insignis, CI.; Biddulphia gallapagensis, CI.; Triceratium Tripos, CI.; T. Anderssonii, 

 CI. ; T. laeve, CI. ; T. gallapagense, CI. ; T. Margaritiferum, CI. 



