REPORT ON THE AMPHIPODA. 1621 



animals may often be seen carrying others about in this manner, but he adds, " elles finis- 

 sent par les ronger sur le dos, jusqu'a ce que les ayant tuees elles abandonnent le cadavre." 

 After referring to the statements of Easter, Roesel, Cuvier and others, with regard to the 

 eggs being carried in the mother's ventral pouch, he owns that he has seen nothing of 

 all this, but he says, "je me suis assure que les crevettes pondent une espece de frais 

 gelatiueux pared a celui de plusieurs testaces univalves d'eau douce." 



Besides the above rather singular statements, some useful criticisms are given on the figures in 

 Roesel and Easter and the authors who copied directly or indirectly from Roesel. Vallot 

 says that Squilla fluviatilis, Merret, Pin. p. 192, has nothing to do with la crevette 

 des ruisseaux, as supposed in YEncycl. method, ins., t. vi. p. 187, No. 7, and le Diet, des 

 Sc. nat., t. 28, p. 354, for that Merret is not speaking at all of Gammarus pulex, but only 

 of the larva of Dytiscus manjinalis, "signalee par Rondelet, de piscibus fluviatU. lib., Cap. 

 xxxvii. p. 112, sous la rubrique de squilla fluciatili." 



He refers to M. Flourens, Act. Divion., 1838, p. 83, for evidence that the crevette swallowed 

 alive would perish at once in the stomach ; to M. Hippolyte Cloquet, Enc. method, syst. 

 anatom., t. iv. p. 498, for the capacity of these animals to clear the skeletons of moles, 

 rats and the like; to Thulis and Bernard, Journ. de phys, 1786, t. xxviii p. 67; Journ. 

 d'hist. nat., 1787, No. 21, p. 320 ; Icthyol. de la France, Supplem., p. 34, for the phosphor- 

 escence of the fresh-water shrimp, observed at midnight in June ; and lastly, states that 

 of six crevettes frozen into a mass of ice, which was allowed to thaw slowly, three 

 regained animation and lived for more than a month afterwards. 



1844. ORSTED, A. S. 



De regionibus marinis. Elementa topographise historiconaturalis freti Oresund. 

 Haunise, mdcccxliv. 



In the " Regio Trochoideorum " extending from the shore to seven or eight fathoms, Orsted found 

 " Talitrus saltatm- Edw. — Orchestia littorea Leach. — Metoecus Medusarum Kr. in Medusa 

 aurita. — Hyperia sp. nov. ? cum prajcedente in Med. aur. — Gammarus Sabbini Leach, Helle- 

 baek — Hveen. — Gammarus Locusta Fabr." (p. 67). Corophium lonrjicorne mentioned 

 on p. 64 seems to have been omitted from the general list by an oversight. In the " Regio 

 Gymnobranchiorum " he includes " Caprella linearis Latr. Kullen — Hellebaek — Lepitomera 

 pedata Latr. Hellebaek" (p. 73). In the "Regio Buccinoideorum. Profunditas," the 

 Amphipoda are " Amphitoe sp. nov. ? Kullen — Podocerus Laechii Kr. Hellebaek " (p. 78). 

 Of the Amphitoe he gives no description, but merely says in a footnote, " Tentaculis 

 longis circumagendis efficit planum depressius rotundum, ex cuius centro solum caput 

 rubrum, cetero corpore latente, prominet." He makes some incidental remarks on the 

 adaptation of the species to their respective localities. 



1850. De Natale, Giuseppe. 



Su pocki Crostacei del porto di Messina. Lettera del Dottor Giuseppe de Natale 



socio corrispondente dell' Academia giornia di Catania al Sig. Acliille Costa con una 



tavola in ra/me. Napoli, 1850. pp. 1-16. 



The discovery of two species of Crustacea, which, as he supposes, belong to the " Iperini Gam- 

 maroidi a piccol capo," the Vibilidas, which had hitherto included only a single genus Villi//" 

 and a single species Perouii, leads de Natale to the discussion of the organic value of the 

 Crustacean chela and its modifications, in regard to which he says, " questi passagi graduati 



