534 Record of American Carcinology for 1880. [July, 
(33) discusses the presence of certain tropical and subtropical 
forms on the New England coast. These are ten in number. 
Concerning some of the Crustacea described by Thomas Say, 
there has been considerable uncertainty, and in the case of 
three genera of Amphipods, Mr. Smith (34) presents us extended 
descriptions of ‘Say’s forms, and settles the disputed points. 
The genus Zrichthonius is considered as belonging to a distinct 
subfamily from Cerapus, with which it has been confounded. 
Dr. Packard is the only one who has published anything con- 
cerning the anatomy of the Crustacea, and his articles have all 
been upon the eye and brain of Limulus, and are all published in 
the pages of the Naruraist, and hence do not need more 
extended notice here. A more extended paper on Limulus,’ 
though bearing date 1880, did not appear until the beginning of 
the present year, and will be noticed more at length elsewhere. 
_ Dr. Brooks has published preliminary accounts of the embry- 
ology of the curious genus Lucifer (1 and 2). We understand 
that the complete history will appear in the Philosophical Trans- 
actions of the Royal Society. The most important feature dis- 
covered is that the young Lucifer is a Nauplius and not a Zoea 
as is the case with most Decapods. This discovery adds addi- 
tional probability to the statement of Fritz Miller that the young 
of Peneus is also a Nauplius, 
Mr. Emerton (4) figures the nauplius of a barnacle. 
Dr. Faxon (5) discusses the membrane which envelops the 
larva of Carcinus menas and the morphology of the zoéal anten- 
nz; seven figures are given of the zoéa of Panopeus Say, and 
one of the tail of zoéa of Gelasimus pugnax. The text is so Con” 
densed as not to admit of putting into an abstract, and students 
are referred to the article itself. The two folded plates accom 
panying the paper are very good. 
Professor Smith’s paper on Pinznixa (32) should be read in con- 
nection with that of Dr. Faxon, noticed in the review of last 
year, 
BIBLIOGRAPHY. 
Brooks, WILLIAM KeIrH— 
1. The young stages of the Crustacean Leucifer a Nauplius. Am, Nat., XIV, 
80). 
pp. 806-808 ( ce 
2. The Embryology and Metamorphosis of the Sergestids. Zool. Anzeigets 
Ill. pp. 563-567 (1880). 
'The Anatomy, Histology and Embryology of Limudus polyphemus. Anniver- 
sary Memoirs of the Boston Society of Natural History, 1880, pp- 45» pls. 7- 
