ALG^ FROM THE "WEST INDIES. 277 



Long. cell, sine teg. 5"5-6'5 n, c. teg. 13'5 fi ; lat. cell, sine 

 teg. 1'8/i, c. teg. 9*5-10*5/x. 



Hah. On damp wall of dam, Sharp's Eiver, St. Vincent. 



Ko. 477. 



Forma cellulis 5-6plo longius quam latius. (PI. XIV. fig. 26.) 

 Long. cell. s. teg. 11*5-135 ^, c. teg. 21/x; lat. cell. s. teg. 

 2-2-3 /L/, c. teg. ll-5-12-5^. 

 Hah. With the typical form. 



46. Glceothece lunatum, nov. sp. (PI. XYI. fig. 9.) 



G. cellulis 2-4 in familiis consociatis, subcresceutiformibus, 

 2plo longius quam latius, apicibus acutis ; tegumentis univer- 

 salibus, ovalibus vel ellipticis ; cytioplasmate serugineo et ho- 

 mogeneo. 



Lat. cell. 2'o-2 7 n; apicibus cellularum 4*8-5'7/z inter se 

 distantibus ; famil. 325 x 19 fx. 

 . Hah. With Gl. linear is , Naeg., but very scarce. 



47. Aphanothece saxicola, Naeg. (Z. c. p. 59, t. 1 h. f. 2.) 

 Lat. cell. 1-4-1-8 //. 



Hah. In small masses of 70-120 ix in diameter, amongst mosses 

 on trees, summit of Trois Pitons (4500 ft.), Domiaica. Nos. 903 

 and 904. Eather scarce. 



48. A. MiCEOscopiCA, Naeg. (Z. c. t. 1 h. f. 1.) 



Long. cell. 5'5-7*5^i; lat. cell. 3'8-4-dfc/Lx; diam. famil. 108- 

 179 /i. 



Hah. On damp wall of dam. Sharp's Eiver, St. Yineent. 

 No. 477. Amongst Symploca cuspidata, n. sp., on trees, summit 

 of Trois Pitons (4500 ft.), Dominica. No. 904. 



49. Teteapedia teigona, nov. sp. (PI. ^YJ. fig. 8.) 



T. cellulse triangulares, lateribus concavis, angulis subrotun- 

 datis ; a latere visae ellipticse ; cjtioplasraate pallide serugineo et 

 bomogeneo. 



Lat. cell. 7"2 /x ; crass. 3*6 ju. 



Hah. On damp wall of dam, Sharp's Eiver, St. Yineent. 

 Ko. 477. 



Class Diatom ACE JG. 



50. EpithemiaWesteemanni, Kuetz. {Pritch.Infus. ed. 1861, 

 p. 700, t. 4. f. 2.) 



Hah. In stream, crater of Grande Soufriere, Dominica. Nos. 881 

 and 908. 



