WEST INDIAN FRESHWATER ALG 289 
subehionee et Inteo- viridibus, pyrenoidibus carentibus. Ushadslaiis 
+ wee Long. cell. 15-22 p; lat. cell. 7: 7-9'6 p. 
Barbados at co Br idaaioin Wn ; par ie on Chara 
‘This species is characterized by the ellipsoid cells with rounded 
apices, and by the short, thick stalks of attachment. There are four 
chromatophores in each ce ll, of a yellow-green colour, somewhat 
granular in appearance, but destitute “A pyrenoids. It should be 
compared with Charactopsis minuta (A. Br.) Borzi, from which it 
differs in the form of the v vege es tive cells, and in the absence of the 
narrow stalk with its basal dis 
BaciLuaRiez&. 
46. Cycnorenta Menzeuiniana Kiitz. Barbados.—Graeme Hall 
Swamp; ‘* Chane cery Lane” Estate 
47. CERATAULUS LEVIS Seay ) Ralfs var. THERMALIS (Menegh.) 
Grun. Dominica.—Roseau 
This diatom occurred i in quantity amongst Terpsinoé musica. 
have to thank Mr. E. Lemmermann, of Bremen, for its correct 
identification 
48, TerpsiInoE gt: mpi Barbados,—Graeme Hall Swamp. 
Dominica.—Ros 
This species hes been _ previously recorded for Dominica oe 
W. & G. 8. West in Journ. Linn. Soc. (Bot.) xxxiv. 1899, p. 295). 
49, SyNEDRA PULCHELLA Kiitz. ab —In pools, Bay Estate. 
T: — Bowl Botan. Gardens, St. Ann’s; Government Farm, 
St. ne 
5. Utna (Nitzsch) Ehrenb. Tr oo —Roy. Botan. Gardens, 
St. lees Government Farm, St. Clai 
51. S. Acus (Kiitz.) Grun. saci Aa ont Hall Swamp. 
Trinidad.—Pools on the Pitch Lake, La B 
Apes . 5. raprans (Kiitz.) Grun. Tr inidad EaGevermaneit Farm, 
. Clair 
3. Csnaronni Arcus (Ehrenb.) rope var. AMPHIOXYS (Rabenh.) 
De —< Barbados.—Graeme Hall § mp. 
Kunorra epee (Dillw.) abenh. . Barbados. —Nea 
Ssaeneen: Trinidad.—Roy. Botan. Gardens, St. An 
i pag curta Van Howe Trinidad.—Pools on the Pitch Lake, 
a 
55. E. tunarts (Ehrenb.) Grun. Barbados.—Graeme Hall 
Swamp. ' 
56, ACHNANTHES microcePHaLa (Kiitz.) Grun. T'rinidad.—Roy. 
Botan. Gardens, St. Ann’s. 
57. A. coarorata (Bréb.) Grun. Bar: “eae Estate.” 
58. A. Hérmannn Gutw. ‘O Algama, sabranim oko Travnika 
po valacasnom prof. Erichu Beandiva,” oc 1898, p. 258 
(ce. fig. xylogr.). _Dominica.—Roseau Valley. 
59, Navicuta viriis Kiitz. Barbados,—Bridgetown. 
