REPORT ON THE AMPHIPODA. 367 



length of the upper antoiiiiEe and by the presence of two terminal hooks on the telson ; 

 " Aiiqikifhoc Brusinx ;" Podocerus monodon, identified by Boeck with Podoeerus falcaius, 

 Montagu ; Heller himself distinguishes it from Podocerus vaviegatus, " especially by the 

 presence of a simple hook on the outer branch of the third uropods," {com^axe, AmpMtlwides, 

 Kossmann, 1880) ; Podocerus largimanus, with forty joints to the flagellum of the upper 

 antennaj, yet given by Boeck as a synonym of Podocerus amjiiipes, Krpyer, which has that 

 flagellum of six to eight joints; Podocerus longicornis, said by Heller to approach Amphitho'd 

 erassicornis, Costa, and by J. V. Carus, 1885 (probably on Nebeski's authority) entered 

 together with the preceding species in the genus Ampihifhoe, without special 

 notice of the secondary flagellum in each of these species ; "Microdeufopus Titii," 

 CyrtopMum Ixve, probably the same as Cyrtopldum darwinii, Sp. Bate, Dr. Heller having 

 apjjarently taken the account of the transverse ridge to mean a longitudinal carina ; 

 Cratippus crassimanus, without much doubt to be united with Crafipipus tenuipies, Sp. 

 Bate, and Exunguia stilipes, Norman, under the common name Colomastix pusilla, Grube ; 

 Caprella ohtusa, which Boeck identifies with Caprella septenirionalis, Kr0yer, and Mayer 

 with Caprella actitifrons, Latreille, $ juv.; Cajirella monacantha, which again according to 

 Boeck is Caprella esmarMi, Boeck, but according to Mayer, Capi-ella eequilibra, Say, $ 

 juv.; Caprella aspera = Caprella aranthifera, Leaeh ; Caprella lepionyx = Caprella acanthi/era 

 juv.; and Caprella anyiata, according to Mayer another synonym of Capirella acanthifera, Leach. 



Costa's Lysianassa filicornis is said to be a synonym of Lysianassu longiccn-nis, Lucas; 

 Lysianassa humilis, Costa, possibly of Lysianassa costee, Milne-Edwards, and Lysianassa 

 cilicda, Grube, of Lysianassa audouiniana, Sp. Bate. Boeck regards Grube "s ciliata and 

 possibly Costa's humilis as belonging to his genus Arigtias, of which he makes Anonyx 

 tumidus, Krpyer, the type, with Lysianassa audouijiiana, Sp. Bate, (wrongly given) as a 

 synonym. Amphithonoius spiniventris, Costa, is renamed Dexamuie sjriniventris, Amplii- 

 thonotus, Costa, being synonymous with Leach's genus Dexamine. Under the name of 

 " Atylus Costx" are united Costa's two species Nototropis spinuUcauda and Nototropis 

 guttatus, though surely guttatii$, in right of priority, should have been retained. The close 

 agreement between Leucotltoe a)iiculosa, Leach, and Leiicotlwe detificulafa, Costa, is pointed 

 out Both these species are united by Boeck under the older name Leucothoe spinicarpa, 

 Abildgaard. Three species described by Costa under the names Gammarus pundimanus, 

 Gammarus obtitsiinguis, Ampjhitlwe semicarinata, are all referred, the two former as males, 

 the last as female, to Gammarella hrevicaiulaUi, Sp. Bate. Ceradocus orchestiipes, Costa, 

 which vSp. Bate transferred to Melita, here becomes Miera orcliestiipes. It is in all 

 probability the Gammarus fasciafus of O. G. Costa. Attention is called to points of 

 agreement between Msera grossimana, Leach, Msera scissima?M, Costa, and Msera integri- 

 mana, Heller's own species. Megamcera hrevicaud.ata, Sjx Bate, is transferred to the genus 

 Mxra. A species supposed to be Eitrysflieus erythrophthalmus, Sp. Bate, but with cleft 

 telson, receives the name Msera erythroplithalrtia. Since, however, Spence Bate's 

 species is the same as Ganmiarojms erythrophihalmus, Liljeborg, Heller's species, with the 

 cleft telson, must not be confounded with it. The similarity of Araphithoe penicillata, 

 Costa, to AmpJtithoe albomaculata, Krbyer, is noticed. It is pretty certainly the same as 

 Amphitlioe vaillantii, Lucas, 1849, if it may not be carried still further back to Amphithoe 

 ruhricata, Montagu. Ericldhoniiis Indens, Costa, is said to be identical with Cerapius 

 aMitus, Templeton. CorojjMum crassicorne, Bruzelius, is identified with the earlier named 

 CoropJiium adierusicmn, Costa, an identification which Boeck accepts with a 1 Caprella 

 tahida, Lucas, is made a synonym of Caprella ariitifrons, LatreiUe. 



A table is added of all the Amphipods found in the Adriatic up to the date of thi.s work. 

 Valuable descriptions and figures are given of several of the previously known species, 

 as well as of the species discovered by Heller himself. 



