ZOOLOGY. r)67 - 



tern ; or (2) for the reason that they are or have been deemed to be of 

 high taxonomic importance ; or (3) because the animals per se are of 

 general interest ; or finally (4) because they are of special interest to 

 the American naturalist. Of course, zoologists cultivating limited 

 fields of research "will find in omissions cause for censure, and may urge 

 that discoveries of inferior importance have been noticed to the exclu- 

 sion of those better entitled to it. It is freely admitted that this charge 

 may even be justly made; but the limits assigned to the record have 

 been largely exceeded, and the recorder has studied the needs of the 

 many, rather than of the few. The summary is intended, not for the 

 advanced scientific student, but for those who entertain a general inter- 

 est in zoology or some of the better-known classes. 



SYNOPSIS OF ARRANGEMENT. 



I. General Zoology. 

 II. Protozoans. — Sporozoans; Infusorians. 



III. PoRiFEKS. — Sponges. 



IV. Cgelenterates. — Polyps ; Acalephs. 

 V. ECHINODERMS. — Echinodcrms. 



VI. Worms. — Dicyemids; Platyhelminths ; Nematelmlnths ; An- 

 nelids. 



VII. Arthropods. — Merostomes; Crustaceans; Arachnids; In- 

 sects. 

 VIII. MoLLTJSCOLDS. — Polyzoans ; Brachiopods. 

 IX. MOLLUSKS. — Conchifers; Gastropods; Cephalopods. 

 X. Protochordates. — Tunicates. 



XI. Vertebrates. — Fish-like Vertebrates; Leptocardians ; My- 

 zonts; Selachians; Fishes; Amphibians; Reptiles; Birds; Mammals. ^ 



I. GENERAL ZOOLOGY. 



HISTORICAL ZOOLOGY. 



Archiv fur Naturgeschichte. Gegriindet von A. F. A. Wiegmann. Fortgesetzt von 

 W. F. Erichson. In Verbindung mit Prof. Dr. R. Leuckart in Leipzig herausge- 

 geben von Dr. F. H. Troschel, Professor in der Friedrich-Wilhelms-Universitat 

 zuBonn. 48. Jahrgang. Berlin, NicolaisclieVerlags-Buclihandlung, 1882. (8vo.) 



Bibliotiieca Historico-naturalis, physico-chemica et mathematica, oder systematiscb 

 geordnete Uebersiclit der in Deutschlaud und dem Auslaude auf dem Gebiete der 

 gesammten Naturwiesenschaften, etc., erschieneuen Biicber. Herausgegeben von, 

 F. FrenkeL xxxi. Jabrg. Gottingen, Vandenboeck & Ruprecbt, 1882. (8vo. 

 M. 1.20.) 



Zoological (Tbe) Record for 1881, being Vol. xviii of tbe Record of Zoological Litera- 

 ture. Edited by Edw. Caldwell Rye. Loudon, Van Voorst, 1882. (8vo.) 



Zoologiscber Anzeiger. Herausgegeben von Prof. J. Victor Carus. V, Jabrgang^ 

 1882. Leipzig, W. Engelmann, 1882. (8vo.) 



Zoologiscber Jaliresbericbt fUr 1880. Herausgegeben von der zoologischen Station za 

 Neapel. Redigirt von J. Victor Cams. I. Abtb. AUgemeiues bis Vermes. II. 

 Abtb. Artbropoda. III. Abtb. Tuuicata, Mollusca. IV. Abtb. Vertebrata. . 

 Leipzig, Engelmanu, 1682. (8vo.) 



