REPORT ON THE AMPHIPODA. 1640 



Blanc and Chevreux, Professor Barrois mentions instances of Orchestic* littorea occurring in 

 the Azores at various heights from 15 to 80 metres above the sea-level, and concludes that 

 this species is a marine type tending more and more to withdraw from its primitive habitat 

 and to become adapted to life on land. He thinks it not improbable that " Orchestia 

 Chevreuxi," de Guerne, found at the bottom of the crater of Fayal, may bo the same species 

 and not a new one. He also points out that Dana recorded two terrestrial species of 

 Orchestia, Orchestia sylvicola from the crater of Taiamai in New Zealand, and Orcliestia 

 tahitensis in Tahiti 1500 feet ove the sea level. 



1888. Barrois, Th. 



Note prediminaire sur la Faune Carcinologique des Acores. Lille, 1887 

 (Preface dated "Lille, le 15 Fevrier 1888." ?) 



Reference is made to " H. Drouet, Elements de la Faune Acoreenne (Mem. de la Soc. d'Agric, 

 des scienc., arts et belles-lettres du depart, de I'Aube, 2" ser., t. xii, 1861)." The only 

 Amphipod included in the Crustacean fauna of the Azores by Drouet was Phronima 

 sedentaria, Forskal. Professor Barrois here adds seven and twenty. Of the names here given, 

 in his subsequent report he changes " Proto Goodsiri Spence Bate " into " Proto ventricosa 

 0. F. Muller," and " Cyamus Thompsoni Gosse " into " Cyamus globicipitis Liitken ; " and 

 for some unexplained reason changes the correct spelling of Mxra into Mcera. 



1888. Barrois, Th. 



Remarques sur le diniorphisme sexuel chez quelques amphipodes du geure Mcera 



(M. scissimana Costa = M. integrimana Heller, M. grossimana Montagu = M. 



Donatoi Heller). Extrait du Bulletin de la Societe Zoologique de France, t. xiii, 



seance du 28 fevrier 1888. 2 pages. 



Professor Barrois, having examined the types of Heller's species, concludes that Mxra scissimana 

 (Costa), and Mxra blanchardi, Spence Bate, are the male, and Mxra integrimana, Heller, 

 the female, of one species, while Mxra grossimana (Montagu), and Gammarus Impostii, 

 Milne-Edwards, are the male, and Mxra donatoi, Heller, the female, of another species. 



1888. Barrois, Th. 



Catalogue des Crustaces marins recueillis aux Acores durant les mois d'Aout et 



Septembre 1887. (Avec 4 Planches et 8 Figures dans le texte.) Lille, 1888. 



In the descriptive part the Amphipods occupy pp. 30-59. Thirty-five species are named, 

 beginning with Phronima sedentaria, Forskal, and ending with Cyamus globicipitis, Liitken, 

 these two species, however, not being included in the number obtained by Professor 

 Barrois himself. In the addenda at p. 100, he remarks that "1' 'Orchestia Chevreuxi de 

 Guerne parait utre une forme veritablement nouvelle, d'apres les dernieres observations de 

 de Guerne et de Chevreux." With a fuller discussion of the synonymy of Mxra scissimana 

 (Costa), Professor Barrois now thinks that Ampldthoe inxquipes, Costa, should be included 

 in it, as in fact representing the female of the species. He gives the name " Moera rapax, 

 Costa" to take precedence of the following synonyms " 3 Elasmopus rapax Costa," 

 " $? Gammarus brevicaudatus Spence Bate," " ? Megamoera brevicaudata Spence Bate," 

 " cJ et $ Moera brevicaudata Heller," " $ Elasmopus latipes Boeck," " c? et ? Elasmopus 

 latipes ChevTeux." This reduction of the genus Elasmopus under Mxra is supported 

 (zool. chall. exp. — pabt lxvii. — 1888.) . Xxx 207 



