• REPORT ON THE AMPHIPODA. 157 



noirs, comme chez les pr6cMentes, sont tout-i-fait sans pigmentum et non apparens. Nous 

 la nommerons Gammarus pulex mimdus, parce que c'est en effet a I'espfece sans epines qu'elle 

 appartient." As to this see note on Koch, 1835. 



1835. GUERIN-M^NEVILLE. 



Expedition scientifique de Moree. Atlas, 1831-1835. Paris, 1835. 



On page 3, in the description of PI. XXVII. , what relates to the Amphipoda is thus given : — 

 " Fig. 4. Talitrus 2)latiehelis, Guerin ; voy. p. 44. Grossi ; a dernier segm. de I'abdom. plus 

 grossi ; h mandibule tres-grossie ; c une patte de la seconde paire trfes-grossie ; d patte 

 ant^rieure du Thalitrics locusta grossie ; e celle du Thalitrus Cloqueiii egalement grossie. 

 — Fig. 5. Gammarus 2^eloponnesiaciis, Guerin voy. p. 45. Grossi ; a partie d'une antenne 

 externe trfes-grossie." On Fl. XXVII. itself, vrhich has the inscription " E. Guerin 

 pinx'," there is no figure 4. d. Figures 4. e. and 4. f. represent not single feet but the 

 whole anterior portion, head, antennae, gnathopods, etc., of two Orchestidae, the former 

 copied from Desmarest's copy of Montagu's Gammarus saltator, the latter from Savigny's 

 figure of Talitrus cloquetii (Audouin). In figure 5, the two last peraeopods are represented 

 without side-plates, and attached to the fifth and sixth peraeon-segments, while the 

 pleopods are attached respectively to the seventh perason- and the first and second pleon- 

 segments. The telson appears to spring from the fourth pleon-segment. 



1835. Johnston, George. 



Illustrations in British Zoology. The Magazine of Natural History. London, 

 vol. viii. 1835. London, 1835. pp. 668-675. 



Under " Class Crdstacea. Subclass C. mandibulata," Johnston gives a definition, first of the 



" Legion Edriophthalma," then of the " Order L/EMODIPODA Latreille, in Cuv. E6g. Anim., 



iv. 126," which he divides into 



" (1.) Branchial lamellae 2 pairs, attached to the second and third segments, which are 

 apodal ....... Capr^lla. 



" (2.) Branchial lamellae 3 pairs, attached to the base of the second, third, and fourth 

 pairs of legs, which are all monodactyle . . . Pe6to." 



To Caprella he assigns "1. C. Phasma;" "2. C. acanthi/era," with "?var.," Leach's Cap. 



linearis, "in Edin. Encycl., vii. 404," and a reference to Fleming's opinion that it is probably 



only "a variety of C. Phasma;" "3. C. Pe7inantii ;" "4. C. linearis." 

 To Proto he assigns two varieties of Proto pedatus, which he figures and describes. After the 



fuller description of the species he distinguishes 

 " Variety 1. — Hands oval with a single denticle at the base : head rounded in front : branchial 



lamellae larger and elliptical. Ohs. To this variety the figures of Miiller and Montagu 



belong. 

 " Variety 2. — Anterior hands triangular, somewhat lobed at the base ; the wrist deeply sinuate ; 



posterior hands oval, with two teeth at the base, and serridate on the inner aspect : head 



very obtuse in front : branchial lamellae smaller and cylindrical. Ohs. All the specimens I 



have seen belong to this variety." 

 "Latreille (Cuvier, Efegne Animal, tom. iv. p. 127) and Desmarest assert that the figures of 



MiiUer and Montagu refer to distinct animals, which do not even pertain to the same genus. 



There is some error in this ; for the figures are in reality more closely alike than could have 



