4 
CLEVE, DIATOMS FROM THE WEST INDIAN ARCHIPELAGO. 
N. gemmata Grev. (Ed. N. Ph. Journ. [N. S.] X.: 1859 
pag. 30. Pl. 4 fig. 7. N. spectabilis Grus. N. Gruno- 
wii RABH.) Virgin Ids. rare. 
N. Apis (DONE?) A. Scnewm. (Atl. Pl. 12 fig. 22, 23, 24) 
Virgin Ids. common. 
N. Entomon (EKB.?) A. Scam. (Nordsee Diat. Pl. 1 fig. 
14) Virgin Ids, very common. 
N. didyma Körtz. (A. Scam. Nordsee Diat. Pl. 1 fig. 7) 
St. Bartholomew. 
N. Weissflogit A. Scam. (Atl. Pl. 12 fig. 27—32) Virgin 
Ids, St. Bartholomew, not rare. 
N. interrupta Körtz. (A. ScHmx. Atl. Pl. 12 fig. 10—11). 
Virgin Ids. common. 
N. suborbicularis GREG. (A. ScHm. Atl. Pl. 8 fig. 1—6) 
Virgin Ids. frequent. | 
N. littoralis Donz. (A. ScHm. Atl. Pl. 8 fig. 23—25) 
Virgin Ids. 
N. advena A. ScHwm. (Atl. Pl. 8 fig. 29) Virgin Ids. 
N. mitescens GREG? (A. ScHm. Atl. Pl. 8 fig. 15) Virgin 
Ids. 
N. notabilis Grev. (Trans. Micer. Soc. XI pag. 18 fig. 9) 
Virgin Ids. common. 
N. Lyra EuB. (inel. N. Gregoryana GREvV. — A. SCHM. 
Atl. Pl. 2 fig. 5, 24, 25, 26) Virgin Ids. very common. 
Var. approximata Grev. (N. appr: Ed. N. Phil. Journ. 
X [N. S.] 1859 pag. 28 P1. 4 fig. 4) St. Bartholomew. — Fig. 
1. iof — This form seems to connect N. Lyra with N. Cou- 
peri Bail. (Smiths. Contrib. II 1852 pag. 39), which differs by 
a slight constriction in the middle. It seems to be very near 
also to N. Kittoniana A. Scem. Atl. P1. 2 fig. 10. 
20. 
27. 
N. irrorata Grev. (Ed. N. Phil. Journ. X [N. S.] 1859 
pag. 27 Pl. 4 fig. 1. — A. Scam. Atl. Pl. 2 fig. 22) Virgin 
Ids. not rare. 
N. indiea Grev. (Mier. Journ. II pag. 95 P1. 9 fig. 13) 
Virgin Ids. rare. I have also found on the Virgin Ids. 
the variety, delineated in A. Scewm. Atl. Pl. 2 fig. 17 and 
called there N. caribea (A. ScEm. nec Cl.) 
N. pretexta EKB. (GREGORY Diat. of Clyde pag. 481 PI. 
9 fig. 11. A. Scnwm. Atl. Pl. 3 fig. 31—34) Virgin Ids. 
rare. 
N. Hennedyr Sm. Virgin Ids. common. 
