584 THE VOYAGE OF H.M.S. CHALLENGEE. 



" jEgina spinosissima Stinips., Trifropis aculcata (Lepechin), Amathilla Sahinei (Leacli), 

 Gammarus locusta (Linne), Onesimus littoralis (Kroyer), Tliemisto lihellula (Mandt)." 

 For these and the other species synonymy is given, witli brief notes in general referring 

 almost exclusively to measurements, depths, and the various localities from which the 

 species are recorded. 



Of '■^ Aiiiathilla Saliinei" the largest example measured, without the antennas, 37 mm. "The 

 young, 6 mm. long, show considerable differences from the adult, especially in regard to 

 the antennae, telson and iiropods. The antennse are still sliort ami comparatively thick ; 

 the flagellum of the upper antennfe with only 6 or 7 joints, of the lower with 8 or 9 ; the 

 accessory flagellum with 2. The telson is shorter than the preceding segment ; the two 

 rami of the last uropods are strikingly unequal, the inner scarcely more than a third the 

 length of the outer. On the other hand, there is already a clear indication of the dentate 

 dorsal carina ; and on the first three pleon-segments the edges could be already perceived 

 running obliquely downwards to the hinder angle. In the two latter points, therefore, com- 

 pared with the young form described and figured by Buchholz [1874], notwithstanding the 

 nearly equal size of the specimens examined, there was here an advance in development." 



On " Acanthozime cugpidata (Leisechin)," Koelbel .says, "For this curious .species with its rows 

 and rows of spines, Hoeck's criticisms on the figure published by Buchholz (Die zweite 

 deutsche Nordpolfahrt, 1874, 2. B, Taf. XL), as well in regard to tlie equipment of the 

 first joint of the peduncle of the upper antennas as also in respect to tlie form of the first 

 joint in the three hinder perasopods and to the origin of the first medio-dorsal spine, are 

 confirmed by two very large and well-preserved specimens, which were taken at a depth 

 of 140 Metres. The first median dorsal spine arises from tlie front rim of the first 

 peraeon-segment, and, running almost parallel with the longitudinal axis of the body, lies 

 with a gently undulating curve over the head, extending beyond it with the second half of 

 its length. Also I see the hinder end of the telson with a very shallow emargination, by 

 no means with an acute-angled slit, as figured by Buchholz." The possibility, however, 

 should be borne in mind, that Buchholz may have had another species or a variety under 

 examination. 



1886. Norman, A. M. 



Museum Normanianum, or a Catalogue of the Invertebrata of Europe, and the 

 Arctic and North Athxntic Oceans, which are contained in the collection of the 

 Eev. Canon A. M. Norman, M.A., D.C.L., F.L.S. III. Crustacea. Printed for 

 private distribution. Hough ton-le- Spring, March, 1886. 



Four- tables give the numbers of Crustacea under the following heads ; " I. Total Crustacea 

 described from the AYorld in ]\Iilne-Ed wards' Histoire des Crustaces," including Amphipoda 

 130, "II. Species in IVJ ilne-Edwards from the Area of this Catalogue," Amphipoda 95, 

 "III. Species now described from the Area of this Catalogue," Amphipoda 663, "rV\ 

 Species in the collection of A. M. N.," Amphipoda 272. A preliminary remark is made 

 that "while, on the one hand, it is certain that very many of the forms in Column III. 

 will hereafter prove spurious or synonymous with others ; on the other hand, we know 

 little of the Amphipoda of the Western Atlantic, and nothing of the Ostracoda free living 

 Copepoda and other smaller Crustacea of that district, and very little of those of some 

 other parts of the area." The total number of specie.s in Column III. is 3209, and Mr. 

 Norman remarks that "the Crustacea is the class which undoubtedly embraces more forms 

 than any other outside the Insecta." The species of Amphipoda I'eferred to in Table IV. 



