246 THE VOYAGE OF H.M.S. CHALLENGER. 



"OrcLestiai ad alia genera spectantcs." "Spec. L Orcliestia gi'andicornis Kroyer . . . 

 = AUorcliestes grandicornis."; "Spec. 2. Orchestia longicornis M. Edw.," with Talitrus 

 lowjinyfim. Say, and Scamhalla loiujicornis, Leach, Mss. This species, he thinks, is closely 

 allied to, if not identical with, his own Megdlorcliesfes californianus. 



This portion of Brandt's paper concludes with remarks on Orchestia gryllus, for which the name 

 Scamhalla Sayana, Leach's MSS., is given in the List of Crust. Brit. Mus. 1847. 



The remainder of the paper, pages 310-313, treats of " Megalorchestia eine neue Gattung der 

 Amphipoden aus der Gruppe der Orchestiden." This new genus, he says, to some extent 

 by the form of the first gnathopods inclines towards Talitrus, hy the second gnathopods more 

 to Orcliestia, by the maxillipeds to AUorcliestes, from which last it is again removed by the 

 very short upper antennae. For the name he says, " Ich bezeichne sie nach Maassgabe der 

 Grosse der ihr zum Grunde liegenden Art als Megal orchestia." This genus is a synonym of 

 Orchestoidea, Nicolet, 1849. Brandt defines it thus : — 



"Pedum primi paris ultimus articulus etiam in maribus apice angustatus (Tab. 1. fig. 12). — 

 Pedum secundi paris ultimus articulus marium semper maximus, cheliformis. Pedum 

 maxUlarium articulus ultimus angustatus, apice unguiculatus. Antennas superiores 

 pedunculo inferiorum breviores." The type-species, Megalorcliestia californiana, is 

 described and figured with much detail. The telson is described as " lamina caudalis 

 simplex cordata in medio dorsi longitudinaliter impressa." The plate shows numerous details. 



Talitrus loiKjiemiiis, Say, the 0. {Scamhalla) longicm-nis of Leach's MSS. is discussed as offering 

 " ? Spec. 2. Megalorcliestia longicornis." 



In regard to Talitrus cloquetii, see Note on Savigny, 1825 ; the subgenus Talitrorehestia, resting 

 only on the obscure figure of that otherwise undescribed species, has never met with 

 acceptance. Of Orchestia ochotensis, Spenee Bate in the Brit. ISlns. Catal., p. 369, says, 

 " this species appears to differ but little from Dana's figure of 0. Pickeringii." For Orchestia 

 nidrosiensis, see Note on Kr0yer, 1845. 



1851. Brandt, F. 



Dr. A. Til. V. Middendorff's Eeise in den Aussersten Nordeu und Osten 



Sibiriens. Band II. Zoologie. Theil I. Wirbellose Thiere. St. Petersburg, 1851. 



Krebse, bearbeitet von F. Brandt, pp. 79-148 (1-74). PI. VI. 



The Amphipoda occupy pages 130-144 (54-68) and 511 (74). They are placed in the Sub- 

 classis Crustacea Maxillata, Legio Edriophthalma, and embrace two sections, the Gam- 

 maracea and Liemodipoda. The new species Orchestia ochotensis is described and figured, 

 figs. 18-26, and placed near to " Orchestia Bottee," provisionally so-named, from the Black Sea. 

 (See the preceding Note.) Brandt reports, as taken by Wosnesenski in the Sea of Okotsk, 

 Anonyx ampulla, Phipps, accepting this designation and a long list of synonyms from 

 Kr0yer, 1845, for numerous specimens which he had himself examined. On the authority 

 of a letter from Lichtenstein, he adds to the synonymy " Gamiiiarus Gryllus Lichenst. 

 apud M.S. Mandt," but as he also specially refers to the Atlas of the Voy. en. Scand. 

 (Livr. 37) PI. 13, fig. 2 a-z, there cannot be any doubt that the species intended is Cancer 

 (Anonyx) nugax, Phipps. He also reports numerous well-preserved specimens of "Anonyx 

 Edwardsii," Kroyer, as having been taken by Wosnesenski, along with one of the pre- 

 ceding species, out of the stomach of a whale captured in the Bay of Metschigmensk. In 

 the genus Gammarus he takes Section 1. A. a. Milne-Edwards, with "the inner branch 

 of the third uropod as large as, or at least more than half as long as, the outer," to include 

 "Spec. 1. Gammarus locusta?" from the river Doschkander flowing into the Sea of Okotsk; 

 " Spec. 2. Gamviarus pulex, De Geer," taken in the basin of the hot-springs of Natschik, 



