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



stiliform character of the finger or last joint in the fifth perfeopods, as a distinctive mark 

 in this family. A general description is given of the head, side-plates, mouth-organs, limbs 

 and telson. This is followed by a conspectus of the Norwegian genera and species which the 

 family includes. 

 Pontocrates norvegicus, A. Boeck, is identified with Kroijera altamarina, Sp. Bate, instead of 

 with Kroyera arenaria, Sp. Bate, with which Boeck himself made it synonymous. On 

 tliis see further, Note on J. Sparre Schneider, 1885. Monoculodes affinis, A. Boeck, is 

 thought to belong rather to Monoculodes stimpsoni, Sp. Bate, than to Monoculodes 

 carinatus, Sp. Bate. A relationship is suggested between Monoculodes grubei, A. Boeck, 

 and Monoculodes longicornis, of the same author. A species is described under the title 

 Halimedon saussurei, A. Boeck % with the authority of Professor G. 0. Sars for its 

 being so entitled, but it is said not to agree well with the figures and description by 

 Boeck, and both in appearance and in the structure of the mouth-organs to be unlike the 

 genus Halimedon. 



1883. Smith, Sidney I. 



List of the Crustacea dredged on the Coast of Labrador by the expedition under 

 the direction of W. A. Stearns, in 1882. pp. 218-222. Review of the Marine 

 Crustacea of Labrador, jip. 223-232. Proceedings of United States National 

 Museum. Vol VL Washington, 1883. 



In the " List," sixteen species of Amphipoda are recorded, none of them new. To Bhachotropis 

 andeata, 'Le-pechin s-p., is appended a note, "'Pa;(is et rpoVts, nom. nov., vice Tritropis 

 Boeck, pra?oc." 



The review takes into account Professor Packard's papers : — " A list of the animals dredged near 

 Caribou Island, southern Labrador, during July and August, 1880," (Canadian Naturalist 

 and Geologist, viii., pp. 401-129 (1-29), December, 1863), and his " View of the recent 

 invertebrate fauna of Labrador " (Memoirs Boston Soc. Nat. Hist., i. pp. 262-303, pis. 7, 8, 

 1867). Professor Packard's Amphijjoda had been determined by various authorities, and 

 much confusion had arisen, which Professor Smith in this paper sets himself as far as 

 possible to correct. " In determining Professor Packard's species I have been greatly aided," 

 Professor Smith says, "by a set of his specimens collected in 1864 and labeled by him for 

 the Museum of Yale College." 



" Anonyx producfa, fide Boeck," Packard, 1867, is referred to Anonyx pumilus Lilljeborg; 

 Monoculodes mdnlatus Packard, 1867, to (Ediceros lynceus M. Sars; AmpliHltonotus 

 cataphracfus Packard, 1867, to Pleu-stes iJanoplus Bate (Krbyer) ; Atylus vidyaris Packard, 

 1867, to Pontogenia inermis Boeck (Kroyer) ; " Atylus {Paramphifoe [■ — thoe'\) inermis 

 (Kroyer, fide Boeck)," Packard, 1867, to Halirages fulvoeinctus Boeck (M. Sars); 

 Ganwiarus mutafus Packard, 1863, to Gammarus locusta Fabricius ; Gammarus purpur- 

 atus Packard, 1863, and Gammarus denfahis Packard, 1867, both to Blelita dentafa 

 Boeck (Kriiyer) ; Ampldtonotus Edwardsii Packard, 1867, to Rhachotroins aculmta Smith 

 (Lepechin) ; Ampelisea pelagica Packard, 1863 and 1867, to Ampelisca macrocephala 

 Lilljeborg; Ampelisca (?a/??(artZt Packard, 1867, to Byhlis Gaimardii (Kroyer); Amphithoe 

 mactdafa Stimpson, 1853, Packard {Amphithu:), 1867, Smith, 1874, to AmpMthoe 

 podoceroides Eathke, 1843; Cerapus ruhricoi-nis Stimpson, 1853, Packard (rubi/ormis), 

 1867, to Ericthonius diffonnis MUne-Ed wards ; Glauconome leucopis Kroyer, to Unciola 

 irrorata, Say. 



