206 CRYPTOGAMIA ANTARCTICA. [’Fuegia, the 
2. PINNULARIA peregrina (?), Ehrb. Navicula peregrina, ۰ 
Has. Cockburn Island; in the dirt of a Penguin rookery. Falkland Islands, Lesson. 
The true P. peregrina is a native of the open ocean near the Brazilian coast, and has been found fossil in 
Virginia, U. S., and living at St. Domingo, Cuba, and Labrador. 
20. NAVICULA, Bory. 
1. Navicuza elliptica, n. sp. Ehrb. Schrift. Berl. Akad. May, 1844. 
Has. Graham's Land; in mud from 270 fathoms. 
2. Navicuna amphioxys, Ehrb. Kútz. p. 91. t. 28. f. 37. 
Haz. Falkland Islands; on marine Conferve, Lesson. 
This has also been collected living in Chili, Cayenne and Cuba, in various alluvial deposits, as the Brazils, 
Iceland, and in the natural paper of Silesia. 
3. Navicuta Didyma (?), Kütz. 
Has. Falkland Islands; on marine Conferve, Lesson. 
The true 2۷۰ Didyma is a native of a salt-water Lagoon in Germany. 
4. Navicuta Lyra, Ehrb. Kútz. p. 94. t. 28. f. 55, c. 
Has. Falkland Islands; on marine Conferve, Lesson. 
5. NAVICULA viridis, Kütz. p. 97. t. 4. f. 18. and t. 30. f. 12. 
Haz. Falkland Islands; abundant on marine Conferve, Lesson, J. D. H. 
One of the most widely dispersed of all Diatomacee, found alive in fresh waters of England, Scotland, and 
Ireland, in the natural paper of Silesia, in the Sandwich and Marian Islands, and West Tropical Africa, also in 
alluvial deposits of Iceland, Labrador and Peru. 
91. STAUROPTERA, ۰ 
1. STAUROPTERA aspera, Ehrb. Infus. Amer. p. 194. t. 1. Kite. p. 106. t. 12, c. 
Has. Graham's Land; in mud from 270 fathoms. Falkland Islands, Lesson. 
This has been collected in Norway, Spitzbergen, Iceland and Labrador, Mexico, Cuba, Peru; on the sand-hills 
of Patagonia, and in Peruvian guano. ` 
2. STAUROPTERA capitata, n. sp. Ehrb. Schrift. Berl. Akad. May, 1844. 
Has. Cockburn Island; on the ground in a Penguin rookery. 
22. AMPHORA, Phd. 
1. Ampnora Libyca, Ehrb. Kite. p. 107. t. 29. f. 98, c. 
Has. Graham’s Land; in mud from 270 fathoms. 
Originally detected in the oasis of Sivah, and since found in various quarters of the globe, as Iceland, Labrador, 
the Oregon River and United States; at the Euphrates River, in African guano, and in the volcanic tuff of the 
Rhine. 2 
Fall 
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