REPORT ON THE AMPHIPODA. 21 



postici reflexi. Cauda: 2, protentre, longitudine corporis, 5 articulis ; quorum tertius major, 

 longior et crassior ; primus et secundus brevis ; qvartus et quintus angustiores. Inter has 

 caudas, caudoe. 2 alia;, breves, subulatse." 

 Boeck, under the obviously misprinted date 1771, remarks that as number 2041 of this work 

 is identified with number 1253 of the earlier edition, the synonyms from Eay and Frisch, 

 and Linnseus's own Skiiuska Eesa, ought not to have been cited. Liitken calls attention to 

 the improved definition of Oniscus cetl. The Oniscus hicaudatus must no doubt be identified 

 with the species which Linnajus afterwards called Cancel' grossipes, the antennas having 

 been mistaken in the present instance for the tail, as 0. F. MiiUer remarked in 1776. By 

 Willughby and Eay, in 1710, this species was well-named corriutus, a name unfortunately 

 excluded as prse-Linnean. The Astacus muticus of Gronov, 1762, is only accidentally 

 binominal. The Oniscus hicaudatus of Linnaeus, 1761, and his Cancer grossipes, 1767, must 

 be given up as names founded on egregious mistakes. We are thus led to the Oniscus 

 vohdator oi Tallas, 1766 and 1772, as rightfully determining the specific name. Though 

 the Corophium, longicorne of Latreille and numerous authors was highly appropriate, the 

 name Corophium volutator is sufficiently suitable to an animal which may commonly be 

 seen twisting and turning about at the entrance of its gallery in the mud, and which, 

 according to Pallas, makes similar gyrations when in the water. 



1761. SuLZER, JoHANN Heimkich, borii 1735, died 1813 (Hagen). 



Die Kennzeichen der Insekten nach Anleitung des Konigl. Scliwed. Eitters 

 und Leibarzts Karl Linnseus, durch xxiv. Kpf. erlaiitert und mit derselben natiir- 

 lichen Geschichte begleitet. Mit einer Vorrede des Herrn Johannes Gessners, 

 Ziirich, 1761. 



Sulzer gives a figure of Ecisel's Astacus {Squilla) Jluviatilis on pi. xxiii. fig. 152, and a. 4. He 

 describes it on p. 192. On p. 65 of the explanations of the plates he says, "Fig. 152. 

 Krebs, lange Scheeren, gegliedert, Hande ohne Finger, diinn ausgehonder Schwanz mit 

 zweenfachen Dornen. Locusta. Linn. Syst. Nat. Cancer, 57." 



1762. BaSTEE, J. 



Opuscula, Tom. II. Liber 1, Harlemi, 1762. 

 Natuurkundige Uitspanningen, &c. 



In the first section of the second volume, on pp. 34-36 and 49, pi. iii. figs, vii., viii., 1-6, he 

 describes the hopper or sea-flea, in the vernacular " Een springertje of Zee-Yloo," wth 

 references to " Pules marinus, Klein, Miss. v. Tab. iv. a, b, c. ; Seba, Thes. iii. Tab. xxi., 

 N. 11; Linn., Syst. Nat., N. 36. Cancer macrourus, articularis manibus adactyUs, cauda 

 attenuata, spinis bifidis ; Eosel, Suppl. Tab. Ixii. p. 351 ; Frisch, vii. Tab. xviL 18, 

 p. 26." This in Boeck's opinion is probably Orcliestia littorea, but Easter's remark that 

 it is found not only in sea and brackish water but also in freshwater rivers and even in 

 ponds, but especially among and under the fronds of Alga marina, implies that he did not 

 distinguish the actual creature described from other species such as Gamm.arus pulex and 

 Gammarus locusta. His figure may refer to OrcJiestia (littorea) gammarellus, but if so he 

 has fallen into some confusion in describing the lower antennae, as well as in the synonymy. 



