169 
20. Description of seven new species of Sicilian 
plants. 
Ruta Jimbriata. Xylosteon Siculum. 
Euphorbia montana. Orchis hyemalis. 
Orobanche fragrans. Herniaria nebrodensis. 
•- obtusata. 
21. Florula albimontana, or of the White mountains 
of New-Hampshire, by Bigelow and Booth, with six 
new species, and notes, wherein three new genera are 
established Aplostemon , Bigelowia , and Dimesia . 
22. Synopsis of four new genera and ten new spe¬ 
cies of Crustacea, from the United States. They are 
JVectoceras pelagica , N. G. Astacus limosus . 
JVectylus rugosus , N. G. - fossor. 
Psammylla littoralis , N. G. —- pusillus • 
Pephredo potamogeti , N. G. - ciliaris. 
Grapsus limosus. Portunus menoides. 
Ocypoda pusilla . Daphinia dorsalis. 
Pagurus truncatulus. Cymothoa pallida. 
23. First decade of New Species of North AmerU 
can plants. 
Acnida salicifolia . 
Arabis rotundifolia. 
- parvijlora. 
—- mollis. 
Lemna dimidiata. 
Celtis canina « 
- maritima. 
Copodium oxynemum < 
Turritis lyrata. 
- oblongata . 
24. Description of seven New Genera of North 
American quadrupeds. 
Mazama tema. M. dorsata . AT. Sericea. 
Diplostoma fusca. D. alba. 
Geomys pinetis. G . cinerea . 
P 
