MARINE ALGAI. COMMINITIKS OF 1 Hi: JLAN KF.RNANDF.Z ISLANDS 675 



Cladopliora fascicularis. C odiioii fcnia}idizia)iu)n, Microdictyoi jopoiiiuiii. — 

 DictYota pJilyctac nodes, DistroDiiniN S/cottsdergii, Padina fernandeziana, Sp/iacc- 

 laria cirrhosa (epiph.). — Antithamnion spec, (epiph.), Erythroiricliia carnea 

 (epiph.), Go)iioirichu))i alsidii ^nd cornii rrri'/ (epiph.), Hcterosip}w)iia subseamdata. 

 Ilvpoglossunt parvuluw, Polysipho)iia abscissa, Pterosiphoiiia de?idroJdea , pusilla 

 and Skoitsbcrgii (all epiph.). 



St. 9. Masatiena, in front of I'unta San Carlos. 10.4. 1917. 20 — 30 m. 

 Stones. Dictyotaccac Ass., probably with the usual composition. 



Chaetomorpha linum. — Dictyota phlyctaenodes. Distroiniuw Skottsbcrgii, 



Haloptcris fHici)ia. 



St. 4. The strait between Masatierra and Santa Clara. 27.3.1917. 20 — 25 ni. 

 Rounded clumps of calcareous algae (as a rule enveloping thick mussel shells), 

 lying loose, and calcareous sand. Dictyotaceae-Codiimi-Rliodomelaceae-LitliotJiavi- 

 uion (Lithopln-llum.-) Ass. 



Chaetoi/io)p/ia anteiinina. Ch. firDia, Ch. linum, Codmin cerebrifornic, Mic- 

 rodictyon japonicum. — Colponoiia shiuosa, Dictyota phlyctaenodes, Distroniiitni 

 Skottsbcrgii. Ectocarpus uiinKtissiunts (on Dictyota), Padina fernandeziana, Ralfsia 

 expansa. — Cliajitrajisia catenulata (epiph.), Ch. fcr)ia)ideziana and Thuretii (on 

 Dictyota), Erythrotrichia carjiea (epiph.), Go)iiotrichuin alsidii and cornu cervi 

 (epiph.), Liagora bracJiyclada, PolysipJwnia abscissa. Pterosiphonia dendroidea. 

 Pt. pusilla (epiph.). — Lithothavinion (Lithophyllum.-) crust." 



St. 13. Masafuera, in front of Ouebrada Sanchez. 14.3. 191 7- 20 — 30 m. 

 Stones. Catch obtained with lobster baskets, and consequently fragmentary. 

 Dictyotaccac- RhodopJiyceae Ass. 



Microdictyon japonicuni. — Dictyota pJilyctaenodes. Distroniiian Skottsbcrgii, 

 Haloptcris filicina, Padina fernandeziana. — Hyinenena dccujnbois, Hypoglos- 

 suni parvnluui (epiph.), Gloiodcruia subdichotouiuni, Plco7iosporiuin globuliferiini 

 (epiph.). 



St. 37. Masatierra, Bahia Cumberland. 24.8. 1908. 3c — 35 m. Sand and 

 stones. Fragments of algae, not determined. 



St. 6. Masatierra, Bahia Cumberland. 31.3. 1917. 30 — 40 m. Sand and 

 stones, shell fragments. Dictyotaceae-Codiuui-Rhodophyccae Ass. 



Codiuni fernandezianuni. — Distroniium Skottsbcrgii, Padina fernandeziana. 

 — Cryptonemia prolifera, Gloiodertna siibdichotomtwi, Rhodymenia cuneifolia, 

 Schizoseris Davisii. — Lithothani)iion (Lithophyllum.') spec. 



St. 5. Masatierra, oft' Carbajal, not far from St. 4. 27.3. 1917. 30 — 45 m. 

 Bottom as in St. 4, but much more calcareous sand. Dictyotaceae-Microdictyon- 

 Rhodomelaceae-Lithothaninion ( Lithoph\-llum .-) Ass. 



' On this also leatherv. CruoriaX\V& crusts: not determined: 



