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POPULAR SCIENCE REVIEW. 
recently discovered by Dr. Theodore Gill. The only known specimen of 
the new type was obtained from a pond at Eastport, Maine, during the 
month of August, by an attache (Dr. Edward Palmer) of the Commissioner 
of Fisheries (Professor Baird), and, notwithstanding the assiduous attentions 
of the commissioner and his staff, no other specimens were found ; it must, 
therefore, be actually a very rare fish, or (what is more probable in such 
cases) peculiar in its habitat, and rarely coming within the range of opera- 
tions of the fisherman. An attentive examination and comparison of this 
species with the Glyptocephalus cynoglossus of Europe, indicate that it is 
congeneric with that species and with the Platessa elonyata of Yarrell, but 
more nearly allied to the latter. As the genus is now for the first time 
introduced into our fauna, a description of the characters common to all the 
species (generic), as well as distinctive of the new form (specific), is given, 
but would not prove of interest to the general reader. 
Claparbde on the Sedentary Annelids . — An exquisitely touching narrative 
of the later labours of the eminent Swiss naturalist appears in “ The Aca- 
demy” for November 1st, 1873, which we quote in part, only because of its 
length, but we wish we could include it all. This memoir, says the writer, 
alluding to the work on Sedentary Annelids, “ was written in the autumn 
of 1870, on the eve of Claparede’s departure for Naples ; on his way home 
again in the following spring he died. A sketch of his. life by Henri de 
Saussure and a portrait by Hebert are contained in this memoir. The bio- 
graphical notice originally appeared in the “Archives de la Bibliotheque 
Universelle de Geneve,” but by the desire of the family is republished here, 
with a few corrections. A very brief sketch of this memoir may not here 
be out of place. Filled with a determination to thoroughly investigate the 
structure of the Annelids, but living at the time at Geneva, Claparede was 
compelled to select an Oligochete worm for his researches ; the results of 
his investigations appeared in a most exhaustive and beautifully illustrated 
monograph : “ Histologische Untersuchungen fiber den Regenwurm.” A 
sojourn by the seaside, however enabled him to push his studies still 
further, and in the present memoir he gives us the minute anatomy of 
several species of Polychete worms, together with a discussion of the ques- 
tion of the reciprocal affinities of the larger groups. Many structures could 
only be investigated in the living Annelids, others again were better seen 
in alcoholic specimens. The process of cutting the sections and staining 
them is fully described, and more than two thousand sections were made 
and mounted, the immense majority of the illustrations being drawn from 
actual sections. The instances where a drawing has been made up from a 
comparison of several sections is quite rare. The original drawings were of 
a large size, and were afterwards reduced by the pantograph. The minute 
structure of the Annelids is described under the following heads : — The 
cuticle ; the hypoderm or cutaneous connective tissue ; the muscular layers ; 
the Setae j the perivesceral cavity ; the circulatory system (one of the most 
interesting and critical chapters in this work) ; the digestive system ; the 
respiratory system j the nervous system ; and the segmentary organs. The 
explanation of the plates occupies forty-five pages, and forms a most im- 
portant portion of the work. The species selected for illustration are — 
Spirographis spallanzanii, Myxicola infundibulum , Protula intestinum , Owenia 
