276 Scientific Intelligence. 
A. suavis—In campis Texanis prope Bexar et New Braunfels, 
Lindheimer.—Genus eximium Gaillardiz proximum, at ligulis fo 
miniis, receptaculo globoso vere alveolato, habitu styloque proprio 
diversum, diximus in honorem celeberrimi amicissimique Agassiz.— 
Agassizia, Chavan., est Galvesia, Domb. gassizia, Spach., est Sphee- 
rostigma, Ser., et Holostigma, Spach., subgenus merum CEnothere.* 
Helix annulata.—From examinations of specimens of the Helix 
described on page 101, of this volume, lately received from Mr. ‘Thomas 
R. Dutton, Dr. A. A. Gould has ascertained that it is only a young state 
of H. striatella. The note to page 101, was simply a remark based on 
the figures given by Mr. Case——Eps. 
3. Ornithichnites—On page 79 of this volume, a statement made to 
by Prof. Agassiz is inserted, respecting the number of joints in the 
different toes of birds, and the bearing of this fact upon fossil footprints. 
The same relation was pointed out by Prof. Hiteheock in his Report 
on the Geology of Massachusetts, 1841, ii, 525, and adduced to prove 
that some of the tracks were actually those of birds. It is recognized by 
Dr. Deane, in vol. xlv, p. 180, (1843,) of this Journal, and also sub- 
sequently illustrated by him in the Boston Journal of Natural History, 
. é 
We are informed by Pres. E. Hitchcock, that the quadruped track 
figured by Dr. Deane on page 79 of this volume, (last number,) and 
supposed to be new, is the Sauroidichnites palmatus of his Geological 
Report, or the Palamopus anomalus of his new nomenclature as given 
in the Proceedings of the Association of American Geologists and Nat- 
uralists. He lately examined the original specimen in the collection of 
Mr. Marsh, and immediately recognized it as belonging to the species 
just mentioned.—Ebs. 
4. Plesiosaurus megacephalus; by S. Srutcusury, (Quart. Jour. 
Geol. Soc., No. 8, p. 411.)—This new species of Plesiosaurus was dis- 
tailed description, mentions the following among the distinguishing 
peculiarities. 
ar 
partly voluntary, partly instinctive. ‘These last are seen in a very 
remarka le manner in the eyes, and they are so constant, and so 
n the fish as long as it lives, that their absence suffices to 
characterize the death of the animal. 
LE aloe Me siibisieamadehsscalles en 
* The memoir of Prof. Gray, contains also descriptions of the new species 
Vernonia, meri, Ageratum Wrightii, Brickellia cylindracea, Keerlia bellidi- 
folia and Tetragonothecu. Texana. 
