PvEPOPvT ON THE AMPHIPODA, 38 



1770. Pallas, P. S. 



Dierkundig mcngelwerk. 4° m. PL Utrecht, 1770. 



This, I suppose, is the Miscellanea zoologioa, of 1766, in Dutch. It is mentioned by E. T. 

 Maitland, 1875, who refers to it under the species Orchestia littorea, Leach, and Talitrus 

 saltator, Edw. 



1770. Strom, Hans. 



Beskrivelse over Norske Insecter. Anden Pr0ve, pi. ii. figs. 1-8. Skrifter 

 som udi det Kiobenliavnske Selskab af La3rdoms og Videnskabers Elskere ere 

 fremlagte og oplseste i Aarene 1765, 1766, 1767, 1768, og 1769. Tiende Decl. 

 Kiobeuliavu. Aar 1770. 



On p. 5 he describes " En Marflue, eUer liden Krabbe, med Kipldannet og Sav-lignende Rjg. 

 Cancer macrourus articularis, dorso carinato serrato, spinis caudse bilidis," and figures it 

 Tab. ii. figs. 1-8. The mandibular palp in fig. 3 seems to show the outermost joint 

 divided into three, a mistalce perhaps owing to some folding of the palp accidentally in the 

 course of dissection. Boeck identifies the creature described, no doubt correctly, with 

 Gammarus (now AmathiUa) sabini, Leach. The species appears to be the Gam.marus 

 homari of Pabricius, and the AmathiUa sabini of Bate and Westwood, in which case its 

 name wiU properly stand as AmathiUa homari Fabr. 



1772. Pallas, Petek Simon. 



Spicilegia zoologica, quibus novse imprimis et obscuraj animalium species 

 iconibus, descriptionibus atque commentariis illustrantur cura P. S. Pallas. Fasci- 

 culus nonus. Berolini, mdcclxxii. pp. 50-80, Tab. iii. iv. (To the German 

 version by E. G. Baldiuger, Mayer, Caprellideu, p. 199, assigns the date 1769, pro- 

 bably referring only to the commencement, not to the ninth fasciculus, of the work.) 



He here says " Cancris proximum est ONiscoEnji genus, transitum indicantibus Squillis," and 

 " Oniscoruni squilliformium e phalange quatuor species mihi cognitse sunt." Of these he 

 proposes to leave out Roesel's already well-known species, and to describe the remaining 

 three. 



The first is a new species, peculiar to Siberia, as far as he knows, " abundat autem in Lena, 

 fluvio ulterioris Sibiriae, & omnibus quas in Olum coUiguntur fluentis, praicipue Angara 

 & Lacu Baikal e quo profluit Angara." He has learnt some facts about it from Steller, 

 " in cujus schedis de hac specie (quam ' Squiilam fluviatUem seu Phryganeum fluvii 

 Angara ' appeUavit) qusedam memorice prodita inveni." SteUer, he says, states that 

 " indi vidua dari qusedam mucronibus dorsalibus destituta, quae alterius sexus esse putat, 

 nisi diversse potius speciei fuerint." E. Laxman, from whom Pallas received a specimen, 

 called it " Cancrum baikalensem," but Pallas himself describes and figures it (Tab. III. 

 Fig. 18) as Oniscus cancellus. This Dybowsky in 1874 is content to retain under the name 

 Gammarus cancellus, Pallas, adding a variety Gerstfeldtii of his own discovering. By 

 Spence Bate, however, in 1862, the species was made the type of a new genus Pallasea, 

 which must not be corrected into Pallasia, and thereby confounded with the Dipterous 

 genus Pallasia instituted by Robineau-Desvoidy in 1830. 



(ZOOL. CHALL. EXP. — PAKT. LXVII. 1887.) XXX 5 



