1880. | Anthropology. 603 
developed on the same plan as in Bothropolys, and so far as we 
see, the myriopodan brain corresponds more closely in its general 
form and histology with that of the insects than the Crustacea. 
The large, thick optic nerve arises from the upper side of each 
hemisphere. The median furrow above is deep, and on each side 
is a mass of small ganglion cells; also a mass in the deep fissure 
below the origin of the optic nerve, and another mass.on the in- 
ferior lobe extending down each side of the cesophagus, probably 
near or at the origin of the posterior commissure. These masses, 
ie., those on the upper and under side of the brain, connect on 
each side of the median line, and in this respect the brain is as in 
Bothropolys. There are no large ganglion cells as in Crustacea, 
including Limulus. 
There is then, no very close resemblance in form or histology, 
between the eye and brain of Limulus and the myriopods, the 
two types of eye being essentially different—A. S. Packard, Fr. 
ZooLocicat Notes.—A communication by Dr. W. J. Hoffman, 
on a supposed hybrid between the lynx and domestic cat, was 
lately read before the Zodlogical Society of London. The 
second example of Archzopteryx, with the head, is now on 
deposit in the Geological Museum of Berlin. It was bought, ac- 
cording to Mature, for about $5000, by Herr Siemens, of Berlin, 
in order to save it from importation to the United States. M. 
Viallanes finds that the heart of insects is at first a simple tube 
open only at its two ends. So long as it has no lateral orifice it 
is completely arterial. Undoubted alligators have been dis- 
covered in the Yang-tse-Kiang, the first of this genus to occur in 
the Old World. In the same river occurs the Polyodon, the only 
other existing species of this ganoid living in the Mississippi. 
Prof. E. Van Beneden has discovered the existence of a double 
circulatory apparatys and two kinds of blood in parasitic Copepoda 
(Clavella, Coiericcte and Lernanthropus). The leaf-like lamella 
growing from the end of the body of Lernanthropus are true 
gills, like those of Annelids. There is no true heart; the circula- 
tion of the two fluids being caused by the contraction of the 
) In certain worms, the closed vessels contain a-red blood 
without. corpuscles, while the connected lacunæ of the body (not 
true vessels) contain colorless blood with white corpuscles.— 
Th use of the swimming bladder of fishes is to regulate the 
migration of fishes, according to M. Marangoni. ey have to 
Counteract its action by their fins. It produces a double instabil- 
ity, one of level, the other of position. 
z ANTHROPOLOGY.* 
Puesto Inprans.—The Pueblos of New Mexico and Arizona 
are towns or villages inhabited by Indians of various races and 
Speaking different languages. i When we omit the Indians inhab- 
' HEdited by Prof. Oris T. Mason, Columbian College, Washington, D. C. 
