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



S-ii-7-mi parts latus. Long. corp. usque ad 5 mm. Colore griseo cum maculis parvis 

 nigris. Eemina feminse G. diformi similis." 



60. CeiujMS pugnax (Dana), is followed by a quotation of the description, and " Var. Pontica 

 m. Antennx superiores flagello longitudine variabili, plus minusve breviore quam 

 pedunculum. Pedes 2-di parts digito minus elongate, articulo ejus 1-mo crasso, 2-do 

 margine posteriors incrassato, apice obtuso setis nonnullis obsito. Oculi rubri. Long. 

 Corp. usque ad 3'8 mm. Color ut in prfecedente." The quotations which I have omitted 

 in regard to this and the preceding species are given in V. Cams, prodr. Faun. Medit., 

 p. 393, but Czerniavski's own descriptions of his varieties are omitted by Carus. 



"61. Cerapus bidens, nov. sp. Varietati jMnticx Cerajji macrodadyli simillimus, nisi 

 pedes parts 2-di digito iramobili paulo curvato et in apice bidentato, articulo 5-to intus 

 maxime erroso, tuberculo subbasali valde forti. Long. corp. usque ad 5 '2 mm." These 

 differences, from a species confessedly variable, are but of doubtful specific value. The 

 species is not noticed by Victor Carus, Faun. Medit., except in so far as he intimates 

 that the name is preoccupied, by giving " C. bidens, V. Crs. (nee Czern.)," to take the place 

 of Costa's Eridhonius bidens. 



Gen. 47. Podocerus, Leach, is given with the synonyms, Ischyrocervs, Krciyer, Cerapus (pars), 

 Milne-Edwards, Jassa Leach, Milne-Edwards, Gammarus (pars), Eathke, Cratophium, 

 Dana. "62. Podocerus Oeitis, Sp. Bate;" 63. Podocerus dentex, n. s., Tab. vi. fig. 35, 

 is thus described : — " Mas. Frons obtusa. Antennx superiores inferioribus paulo breviores 

 et multo debiliores, flagello 3-articulato, articulo priecedente non multo longiore, articulis 

 valde decrescentibus, fills olfactoriis tenuioribus in margine inferiore instructo, flagello 

 secundario rudimentario ; a. inferlores incrassatse, flagello 3-articulato, articulis valde 

 decrescentibus, sub apice spinis unguiformibus duabus armato. Ambo paria antennarum 

 margine inferiore sat setoso. Pedes piaris 1-mi manu pyriformi, triplum majore quam 

 carpo, palma setulosa et spinulis nonnullis (3) subbasalibus armata, ungue forti, curvato, 

 margine posteriore paulo dentato ; p. 2-di manu magna, elongata, palma exoavata, dentibus 

 duobus posterioribus magnis et duobus vel tribus subapicalibus multo minoribus terminata 

 setis plumosis dense obsita, ungue curvato, margine posteriore incrassato ; p. S-ii et 4-ii 

 breviores ungue minore, vix curvato. Long. corp. usque ad 4 '3 mm. Color flavescente- 

 brunescens, maculis nigris. Octdi nigri." 



" Gen. 48. Sunamphithoe (Sp. Bate), emend.," is thus defined : — • 



" Ut Amphiilioe. Telson crassum et vel uno hamulo vel duobus terminatum. Pedes parts 5-ti, 

 6-ti, 7-mi tarso (articulus 6-tus Sp. Bate) ad apicem dilatato." In the synonymy 

 Czerniavski refers to Ampliithoe podoceroides, Rathke, and Amphitlioe hiciispis, Heller. He 

 also assigns to this genus, " 64. Stmamphithoe valida nov. sp., Tab. vi. fig. 36.," 

 thus described : — " Mas. Oculi ovales. Antennx superiores segmentum 6-tum thoracis 

 attingentes, inferioribus paulo longiores, pedunculo apice articulum 3-ium inferiorum 

 sequante, flagello filiformi duplo longiore quam pedunculus, 12-15 articulato (articulis 

 in apice filo olfactorio instructis) ; a. inferiores validiores, pedunculo longissimo (flagello 

 superiorum tequali), flagello brevissimo, fere triplum breviore quam pedunculus (3/4 

 articuU 4-ti sequante), articulis 7-9 valde decrescentibus. Ambo paria antennarum 

 setulis-fjaucis perbrevibus instructa. Pedes paris 1-mi et 2-di maxime intequales, p. 1-mi 

 carpo sat magno, triangulari, manu subpyriformi, palma obliqua, denticulo spiniformi 

 postice terminata, ungue in margine posteriore leviter dentato ; p. 2-di manu valida semi- 

 ovali, palma transversa, coucava, postice dentem (fere indicem) validum, rotundatum 

 exhibente, ungue maxime curvo, postice dentato. Pedes ceteri ut in S. hamulo Sp. Bate 

 conformati, p. 7-mi tarso ad apicem maxime dilatato. Telson crassum, retrorsum paulo 

 angustatum, marginibus lateralibus rectis, hamulis duobus fortibus terminatis. Flavescens, 

 cum maculis nonnullis parvis fuscis. Femina. Pedes paris 2-di 1-mo non majores. 



