538 THE VOYAGE OF H.M.S. CHALLENGER. 



(imndiinana, Caprella acanthifera, Caprrlla xquilihra, CajJreJIa denfata, Caprella acidifrons, 

 all found in the Gulf of Naples. The remaining nine plates give numerous and important 

 details of the structure both external and internal of various species. There are also various 

 illustrations interspersed with the text. 

 Attention may be called to the section on the salivary gland, a? Mayer say.s, p. 145, that " AUe 

 Autoren ohne Ausnahme schweigen von den Speicheldriisen." 



1882. SaES, G. 0. 



Oversigt af Norges Crustaceer med forelobige Bemserkninger over de nye eller 

 mindre bekjendte Arter. (Podophthalmata — Cumacea — Isopoda — Amphipoda) 

 (med 6 autograpliiske Planclier) (Christiania Videnskabsselskabs Forbaudliuger 

 1882. No. 18. Fremlagt i Modet deu 13de Oktober). 



A list is given of 294 species of northern Amphipoda, 8 of them Htiperina, 268 Gammarina, 

 and 18 CaprelUna. The Gammarina are distributed among 22 families, the subfamilies of 

 Boeck being dropped. Forty new species are figured and described, namely ; 95. Chjdonia 

 lorealis, rather to be called Ti/ro horealis ; 97. Lysianella petalocera,s. new genus, of which 

 the special characteristic is said to be the peculiar development of the penultimate joint 

 of the peduncle of the lower antennae, " insolito niodo dilatato, laminari, facie interna 

 seriebus uumero.sis transversis ciliorum exornata." The undivided telson brings it near 

 to the genus Lysianassa, from which it is distinguished by the antennae, the first 

 maxillae "lobo incisivo angusto spinis niinutis crebris armato, paljjo brevi, lobo interno 

 angusto, bisetoso," and the first gnathopods " sat breves, distincte subcheliformes, manu 

 carpo parum longiore leviter attenuato, apice oblique truncato ;" 98. Ichnopus umhonatus ; 

 99. Orcliomene pectinatus, said to be distinguished from Orchomene serrafus, Boeck, by the 

 pale, narrow, subsigmoid eyes, the high, compressed gibbosity on the fourth pleon-segment, 

 and other details; 100. '^ Orcliomene Batei," " = Anonyx Edwardsii Sp. Bate (nonKr0yer) ? 

 = Lysianassa longicornis Sp. Bate $ ." Professor Sars says that Boeck seems not to have 

 had this form under his notice, otherwise he could not have identified it with his Orchomene 

 serratus, which is very distinct and the same as Lysianassa crispata, Goes. As it is not 

 the same as Kroyer's Anonyx edwardsii, with which Bate had identified it, Sars renames it 

 Orcliomene liatei, which, however, cannot rightly, I think, be made to include the species 

 which Sp. Bate calls Lysianassa loni/icornis, Lucas ; 102. Tryphosa riJiafa, apparently very 

 near to Tryphosa nana, Kr0yer ; 104. Normania latimana, provisionally referred to the 

 genus Nonyiania, but without examination of the mouth-organs; 110. Plioxus falcatus, 

 " = PIio.vus simplex Boeck non Sp. Bate," the name proposed fortius species (already 

 described by Boeck, but by him incorrectly identified with Bate's species), referring to the 

 characteristic form of the rostrum ; 112. Stegoceplialus gibhosus said to be easily distinguish- 

 able from the two other northern species by the " Epimera 4ti paris permagna, antecedentibus 

 junctis plus duplo majora, postice valde producta et seqvaliter rotundata, distincte latiora 

 quam altiora" and by the "segmentum 3tium corporis postici supine in gibberum acutum 

 desinens, epimeris in medio niarginis posterioris processum acuminatum leviter recurvum 

 formantibus, angulis inferioribus obtuse rotundatis;" 113. Stegoceplialus an rat us, said to 

 resemble Stcgocephalus cliristiaiiensis, Boeck, but to be distinguishable by its smaller size, 

 a broad orange stripe over the back, and the structure of the fifth peraeopods with " articulus 

 basalis permagnus, laminaris, ceteris junctis multo longior, ad marginem posticum dense 

 serratus et deorsum in angulum valde prominentem et ultra articulum 4tum porrectum 

 excurrens;" 114. Andania pectinata, said to be near Amlania nordlandica, Boeck, but to 



