EEPOET ON THE AMPHIPODA. 567 



1885. Murdoch, J. 



Seven new species of Crustacea and one Worm from Arctic Alaska. Proceedings 

 of the United States National Museum. VII. Washington, pp. 518-522. 



Acanilwzone pnlyacantlia, n. s., Melita formosa, n. s., Mdita leonis, n. s. (G. H. Fowler, in 

 Zool. Eecord for 1885.) 



1885. Packard, A. S. 



On the structure of the brain of the Sessile-eyed Crustacea. Read at Washing- 

 ton, April 14, 1884. Memoirs of the National Academy of Sciences. Vol. III. 

 Part 1. 1884. Washington, 1885. pp. 97-110. 5 Plates. 



The investigation appears to refer almost exclusively to Isopods, but in the section headed 

 "Morjjhology of the Brain," Packard says, "the brain of the Isopods and Amphipods is a 

 syncerehrum, though far less complicated than in the Decapoda. It wiU be remembered 

 that Professor Lankester, in his memoir on Apus, designates the simple brain of that 

 crustacean as an arcJu'cerclmm, while the composite brain of 'all Crustacea, excepting Apus, 

 and possibly some other Phyllopods,' he denominates a syncerehrum." "As seen in Fig. 1, 

 the brain or supraojsophageal ganglion is a composite mass or group of four pairs of 

 ganglia, i.e. (1) the brain proper or procerebral lobes, (2) the optic ganglia, (3) the first 

 antennal, and (4) the second autennal lobes. These lobes are quite separate from each 

 other in the Isopoda and Amphipoda as compared with the Decapoda." 



On "the histological elements of the ganglia," he remarks that "there are in the Asellidse, as in 

 insects and Decapods, three kinds of elements in the brain and other ganglia, viz.: (1) 

 ganglion cells ; (2) nerve fibers ; and (3) Leydig's pimldsiihstanz {ra&v^i-suhstanx of Leydig 

 and Eabl-Ruckhard, and especially Dietl), which might be called the myeloid tissue or 

 substance." "This is the central finely granular part of the brain, in which granules have 

 short irregular fibers passing through them." 



Pages 10 to 13 contain a " Bibliogra^jhy of works on the nervous system of Crustacea." 



1885. SaRS, G. 0. 



Den norske Nordhavs-Expedition 1876-1878. The Norwegian North- Atlantic 

 Expedition 1876-1878. Zoology. Crustacea. I. By G. 0. Sars. With 21 

 Plates and 1 Map. Christiania, 1805. 



Not only is the title-page of this fine work given in English as well as in Norwegian, but the 

 two languages are employed throughout in parallel columns. The description of the 

 Amphipoda extends from page 139 to page 233, with supplementary notes on page 270. 

 They are figured on Plates 12 to 18, and Plate 20, Fig. 21, in this author's usual masterly 

 manner. He reminds his readers on page 1 that the new forms to be discussed in the 

 present work have already been briefly characterised in earlier papers, the Prodromus 

 descriptionis of 1876, and the Crustacea et Pycnogonida of 1879. Hence, of the 

 species here called new all belong in fact to one or other of those dates, with the exception 

 of the very remarkable " Hyjjeriopsis Y<t>ringii." 



In Tribus I. Gammarina, the genera and species are distributed and numbered as follows : — 

 Fam. 1. Lysianassidte. Gen. 1. Socaniea, Eoeck, 1870, with the note, "I retain for the 



