No. 399.] REVIEWS OF RECENT LITERATURE. 233 
which the first fifty are devoted to an autobiography, followed by 
something over a hundred on the author’s scientific and other trav- 
els, and concluded by a résumé of his scientific work. There are 
numerous illustrations, including several portraits of the author. 
Degeneration of Duodenal Glands in the Cat.— Stöhr! has 
recently shown that in fully grown cats single duodenal glands, or 
even parts of such glands, may completely degenerate; the degen- 
eration begins with a thickening of the connective tissue surround- 
ing the glands, followed by the death of the gland cells and their 
absorption by leucocytes. P. 
Greeley on Tide-Pool Fishes of California. — In the Buletin of 
the U. S. Fish Commission for 1899 is a report by Arthur White 
Greeley, teacher of biology in the State Normal School of San 
Diego, on the fishes collected by him at the tide pools of 
California. 
The small marine sculpins originally forming Girard's genus Oli- 
gocottus are here divided into seven genera: Blennicottus Gill, 
Oxycottus Jordan, Rusciculus Greeley, Dialarchus Greeley, Oligo- 
cottus, Clinocottus Gill and Eximia Greeley; and four new species, 
Blennicottus recalvus, Rusciculus rimensis, Dialarchus snyderi, and 
Eximia rubellio, are described and well figured. Greeley shows that 
the original types of Blennicottus globiceps and Oligocottus maculosus 
belonged to the northern forms, the species called Béennicottus bryosus 
and O/igocottus borealis, by Jordan and Evermann. This fact necessi- 
tates the new names of JB/ennicottus recalvus and Dialarchus snyderi 
for the species common to the southward of Monterey. The figure 
of D. snyderi is apparently taken from a female and fails to show 
the separation of the enlarged first anal ray on which the genus is 
based. 
Mr. Greeley concludes from his study of intergrading forms that 
no real difference exists between the northern species of Gibbonsia 
(evides) and the southern Gidbdbonsia elegans. 
The pools of the rocky coasts of California, a region with high 
tides and a profuse growth of alga, are especially rich in fish life. 
Those from Pescadero to Monterey have been very fully studied by 
Mr. Greeley, more carefully than by any one else. On the coast of 
Mexico the poisonous milky juice of the tree called Hava (contain- 
1 Stöhr, P. Ueber Rückbildung von Duodenaldrüsen, Festschrift der phys.- 
med. Gesellschaft su Würzburg, pp. 209-214, 1 Taf., 1899. 
