282 The American Naturalist. [March, 
more remote than in the Galatheide. The Porcellanidz, short 
though is their abdomen, have still five pairs of abdominal ganglia, 
‘while the Brachyura have the abdominal chain fused. 
Dr. Walker and Dr. F. B. Mason enumerate nearly roo species of 
insects in Iceland, about thirty of which are Coleoptera. 
It is rather curious that not a single species of Lepidoptera has so far 
been discovered there. No Lepidoptera have as yet been-seen upon 
Pitcairn’s Island. © 
Ernst Lehrman (Archiv für Naturgeschichte, Sept., 1889), gives notes 
upon the anatomical structure of the Pentastomide. He treats of the 
body-covering, which is usually a chitinous skin, of the connective 
tissue, which is extraordinarily developed, of the musculature, of 
the nerve and sense organs, and also of those of digestion and sex. 
Fishes.—It is not generally known that any of the Balistidæ have 
the power of producing sound. Prof. Moebius, however, has noted 
this peculiarity in Balistes aculeatus, and has recently described before 
the Berlin Physiological Society what he believes to be the apparatus 
producing it. During the drumming the skin between the clavicle 
and hranchial arch vibrates, and the vibration seems to be caused by 
the motions of the post-claviculare, which forms a lever with a long 
and a short arm, the former of which is made to move by the action of 
the ventral muscles of the trunk. The short arm is thus made to move — 
with noise on the rough inner surface of the clavicle. The swim- 
bladder, which lies very near, acts as a resonator. 
There have lately been frequent reports of the presence of anchovies 
at Torquay and other southern coast fishing places, and this has been 
capped by the notice that they have also been found in Moray Frith. | 
Birds.—Many new species of birds from New Guinea and the 
Moluccas have been described by Hunstein Forbes and Woodford, 
during the last seven years, and thus the supplement to Salvadori’s 
Accipitres, Psittaci, and Picarize of these regions contains twelve new 
species of the first group, fourteen of the second, and nine of the 
third. 
Mr. F. E.Beddard has, in a recent issue of the Proceedings of the 
—Zodlogical Society, discoursed upon the structure of the Hornbills, 
especially that of the syrinx, and the muscular anatomy. 
W. H. Hudson, in his Argentine Ornithology, gives an account of = 
the manner in which Polydorus tharus singles out the white egret from 
i ae he 
$ 
PEIN 
ie ee 

Pee 
$ y Š z z 
E > aey i i Wee a: Pope tee i J 
A SERE as Ed R ae ari ayo tee SE i 
E EEIE EEE ETEN e eee ee EET E wee War a S E EE a e T r OESE O a a AA ae EE o ne EE ANR E TSI N, Ji 
E ee EE ow Sem, ee ee 
Oe es eg rca Ee a Sea ae ae er 


