REPORT ON THE AMPHIPODA. 51 



curtailing some of the descriptions previously given, Fabricius enlarges that of Onisais ccii 

 with the following synonymy : — 

 " Squilla Balseax corpore ouali depresso, segmentis distinctis, pcdibus cheliferis, tertii quartiquo 



paris linearibus muticis. Degeer Ins. 7. 541. 6 tab. 42. fig. 6. 7. 

 " Pcdieidus Ceti. Martens Spit:di. tab. 8. fig. D. 

 " Seb. Mus. 1. tab. 90. fig. 5. 

 " Pall. Spicil. Zool. la.sc. IX. 76. tab. 4. fig. 14. 

 " Egede Groenl. tab. 37. 

 " Habitat in Oceano boreali baleenis molestus. 

 " Ab hoc genero differre viJetur vlterius examinandus." 



Thus Martens' whale-louse is rightly placed, and not, as in the earlier work, erroneously referred 

 to Pediculus (?) Balxnarum. 



1781. Odman, Samuel, bom 1750, died 1829 (G. 0. Sars). 



Grundmarglau, Cancer pulex. Kongl. Vetenskaps Academiens Nya Han- 

 dliugar For Manaderne Aprilis, Majus, Junius, Ar 1781, pp. 1G3-168. 



For the Cancer Pulex here described he gives references to " Faun. Sv. N:o 2041. S. N. X:o 81. 

 H:r Stroms S6nd.-M6r -1, p. 188. Marfliie. Hammers Faun. Norv. N:o 735." The 

 description is as follows : — " Cancer macrourus, manibus adactylis, thorace nullo. Antennae 

 IV, setaoeee, articulis 3 primis longioribus. Oculi nigri lunulati. Segmenta corporis XIII, 

 capite excepto. 5 primis squama laterali munitis; 8, 9, 10, puncto sangvineo notatis 

 (in vivo). Pedes primarii, 4 parium, quorum 2 par. antica chelifera, cum pollicis immobilis 

 rudimeuto, inter squamas laterales latent. Pedes niedii 3 par. longiores, ad segmentum 

 6 incipiunt. Pedes postici 2 par. minimi, bidigitati, sub ipsa cauda, rectrices. Styli 3 par. 

 setacei, mutici sub abdomine (hi sunt pedes spurii Linn^ei Locustee, S. N. N:o 82). Cauda 

 bifida, chela duplici pollioe sursum posito. Corpus vivi fuscum, mortui rufescit, pellu- 

 cidum. IMagnitudo maris § poll. Foem. dimidio minor. Wermdoensibus Grundiiianjla." 

 Odman was doubtful whether the Crustacean mentioned in Linne's Olands-resa, p. 42, and 

 Gothlands-rosa, p. 260, should be called Pidex or Locusta. It is clear from the account he 

 gives of his own species that it is marine, and therefore not G'ammarus pulex, but in all pro- 

 bability Gammarus locusta. See his further account 1799. 



1781. ScHRANK, Franz von Paula, bom 1747, died 1835 (Hagen). 



Enumeratio insectoram Austrise indigeuorum. Avgvstse Vindelicorum, 



MDCCLXXXI. 



On page 535, under " Cancer, 5tvcb'3," lie gives "1114. Astacus, giuSofvetS followed by 



"1115. PoLEx, ecitling. 



" Cancer macrourus articularis compressus, manibus quatuor adactyhs, pedibus decern. 



"Cancer Pulex. Scop. cam. n. 1137. 



" ih-cbgfovmigev aBaSScrwurm. FriscU. Ins. Deut. part. 7. p. 26. g 18. 



" Habitat in aquis, rivis, fontibus ; albissimus, dum natat ; cinereus, dum in iiere exsiccatur ; si 



vel modicus acccdat calor, rubescit. 

 " Nomen germanicum Austriacis usitatum." 

 From the habitat " in rivis," it may be inferred that Schrank was acquainted with Gammariis 



pulex. From the habitat " in fontibus," coupled with the remark " albissimus, dum natat," 



it seems fair to suppose that he had also seen one of the well-shrimps, such as Niphargus 



acjuilex. 



