598 CHAETOPHORACEAE. 



Family 3. ULVACEAE. 



1. ULVA L. Sp. PI. 1163. 1753. 

 1. Ulva Lactuca L. loe. cit. 



Near low-water mark, apparently not common. Berry Islands, Great Bahama, 

 and Atwood Cay : widely distributed. Type locality presumably European. 



2. *ENTEROMORPHA Link, Hor. Phys. Berol. 5. 1820. 



Thallus simple. 1- E.flexuosa. 



Thallus branched, the branches often monosiphonous at 

 apices. 



Chromatophores much smaller than the cells. 2. E. plitmosa. 



Chromatophores nearly filling the cell. 3. E. salina polyclados. 



1. Enteromorpha flexuosa (Wulf.) J. Ag. Till Alg. Syst. 3: 126. 1883. 



Conferva flexuosa Wulf . ; Eoth, Cat. Bot. 2: 188. 1797. 



On stones, low-littoral. Great Bahama, Mariguana, and Caicos Islands : Ber- 

 muda to American Virgin Islands ; widely distributed in the warmer seas. Type 

 from shores of the Adriatic Sea. 



2. Enteromorpha plumosa Kiitz. Phyc. Gen. 300. pi. 20. f. I. 1843. 



Enteromorpha HopkirUi MeCalla; Harv. Phyc. Brit. pi. 263. 1849- '51. 



On stones, etc., near low-water mark. Berry Islands, Joulter's Cay, Exuma 

 Chain, and Mariguana : Maine to American Virgin Islands ; Europe. Type from 

 Trieste. 



3. Enteromorpha salina polyclados Kiitz. Phyc. Germ. 248. 1845. 



Enteromorpha polyclados Kiitz. Tab. Phyc. 6: 13. pi. 36. f. d-f. 1856. 



On stones at low-water mark. South Caicos : Florida ; Europe. Type from 

 Spiekeroog, East Friesian Islands, North Sea. 



Family 4. CHAETOPHORACEAE. 

 1. GOMONTIA Born. & Flah. Jour, de Bot. 2: 163, 164. 1888. 



1. Gomontia polyrhiza (Lagerh.) Born. & Flah. loc. cit. 



Codiolum polyrlnzum Lagerh. Ofvers. K. Vet.-Akad. Forh. 42 s : 21. pi. 28. 

 1886. 



Boring into old crusts of various Lithothamnieae (GonioUthon Borgesenii, O. 

 accretum, and Porolithon pachydermum) and probably common in shells. Berry 

 Islands and Mariguana : widely distributed in temperate and tropical seas. Type 

 from near Kristineberg, Sweden. 



2. ENDODERMA Lagerh. Ofvers. K. Vet.-Akad. Forh. 40 2 : 75. 1883. 



ENTOCLADIA Reinke, Bot. Zeit. 37: 476. 1879. Not Endocladia J. Ag. Linnaea 



15: 449. 1841. 



1. Endoderma viride (Reinke) Lagerh. loc. cit. 



Entocladia viridis Reinke, Bot. Zeit. 37: 476. pi. 6. f. 6-9. 1879. 



In the cell walls of Hypnea musciformis. Cave Cays : Bermuda to American 

 Virgin Islands ; Europe ; Peru. Type from the Bay of Naples. 



* The treatment of the known Bahamian species is based upon determinations 

 by Mr. F. S. Collins. 



