Zo'olos: 
919 
maynardii 2ind A. leucophceus , from Little Cayman ; Alsophis fuscicauda, 
from Cayman Brae ; Ameiva tnaynardii, from Inagua ; and Sphcero- 
dactylus asper, from Andros Island. The paper is more valuable from 
the fact that it contains many notes upon habits, color, etc., made by 
Mr. Maynard. 
The Mammalian Corpus. — Baur shows {Anat Anz. IV.) that 
in the turtle foot there are two centralia, and claims that if this be true 
the scaphoid of the mammalian carpus is not a radiale but a centrale, 
while the "radial sesamoid bone " is a true radiale. He also claims 
that the " heptadactyly " of Wiedersheim and others has no existence 
in the mammalian extremity. The prehallux is the radiale, while the 
pisiform is not the representative of a digit, but a structure which has 
developed more and more from the Batrachia, where it is unossified. 
Zoological News.— Protozoa.— Dr. Joseph Leidy (Proc. Acad. 
Nat. Sci., Philadelphia, 1889) describes the following species of Gre- 
garinida : Gregarina philica, from the proventriculus of Nyctobates 
pennsylvanicus ; G. actinotiis, from the proventriculus of Scolopocryplops 
sexspinosus ; G. tncgaccphala, from Scutigera forcips ; and G. micro- 
cephala, from Hoploccphala bicornis. l"he first named sixcies was 
remarkable in conjugation as the individuals united by the head, the 
Mr. G. E. Mainland calls attention (>//;-. Quecket CIiiIk IV.) to 
the fact that in Actinosphterium the polariscope reveals "thousands of 
minute but highly refractive particles vibrating and scintillating 
throughout the entire sarcode." 
Echinoderms.— J. E. Ives presents a study of the color variations 
of Ophii/ra panamensis and O. teres. In the first-named species speci- 
mens from the northern localities are the darkest. It does not appear 
that either species is more variable than our northern brittle stars. 
V^xvci^^.—BrachiJiuis quadnitus is a new Rotifer described l)y C. 
Rousselet {Joum. Quecket Club. I\'.), from Ei)])ing Forest. England. 
The second part of the work of M. le Baron St. [osejih upon the 
Polycheta of the coast of Dinard occupies about 200 i)ages of the 
Annales des Sciences Naturelles, 1888, and contains descriptions of 23 
new species and one new genus. The work is prefaced with an account 
of the habits of the Aphroditace«, which often have ectoparasites, and 
are themselves at times epizoarians or commensae of other annelids or 
of echinoderms. 
