CALIGOIDEA. 1349 



G. 5. Trebius, Kr. — Cephalothorax 3-articulatus, segmentis duobus posticis trans- 



versis, non alatis. Pedes 8 postici triremes, setis pennatis toti armati. Frons 



discis suctatoriis non instructus. 

 [G. 6. Chalimus, Burmeister. — Lepeophtheiro similis. Pedes postici simplicissimi, 



breviusculi, setis paucis brevibus muniti. An Lepeophtheiro haud convenit? 



Appendix tenuis frontis mediani ancoralis juniori saepius pertinet et character 



generis non validus videtur.*] 



Subfam. 2. PANDARIN^S.f — Truncus buccalis tenuis fere acumi- 

 natus. Maxillae lamellares, ad truncum appressae. Tubi ovigeri 

 externi recti. 



G. 1. Nogagus, Leach. — Cephalothorax 4-articulatus, segmentis duobus posticis 

 transversis, non alatis. Pedes 8 postici toti biremes, setis pennatis bene armati. 

 Pedes 2di percrassi, digitis brevibus et truncatis. Styli caudales lamellati, sat 

 breves, setis plumosis. 



G. 2. Pandarus, Leach. — Cephalothorax 4-articulatus, segmentis 3 posticis latere 

 vel postice alatis. Pedes 8 postici biramei, setis perbrevibus instructi, duo poste- 

 riores late lamellati. Styli caudales laterales, elongate styliformes. Pedes 2di 

 subchelati, digitis brevibus truncatis. 



G. 3. Phyllophora, Edw. — Cephalothorax 4-articulatus, segmentis 3 posticis totis 

 late alatis. Pedes natatorii toti foliacei. Styli caudales non styliformes. Pedes 

 2di subchelati. 



G. 4. Dinematura, Latr. — Cephalothorax 3-articulatus, segmento 2do transverso, 

 non alato, 3tio postice quoad testam valde expanso et profunde bilobato, form& 

 paulo elytroideo. Abdomen 2-articulatum, segmento antico magno, postico parvo 

 sub antico celato. Styli caudales lamellati, terminales. Pedes 2di subchelati, 

 digito mobili acuto. Pedes natatorii 4 antici biremes, 3tii bene foliacei. 



G. 5. Euryphorus, Nordmann. — Cephalothorax 2-articulatus, segmento postico 

 parvo, breviter alato. Abdomen 2-articulatum, segmentis permagnis, lmo postice 

 paulo alato, 2do postice profunde bilobato et medio sinus anguste prolongato, ex- 

 tremitate lamellis caudalibus duabus parvulis. 



G. 6. Lepidopus, Dana. — Corpus antice non Iatius. Cephalothorax 3-articulatus, 

 segmentis duobus posticis postice late alatis. Abdomen 2-articulatum, segmento 

 postico parvo, sub antico celato. Antennae posticae articulo tenui falciformi 

 marginibus bene denticuligero confectae. Pedes 2di crassi, manu non instructi 

 superficie inferiore lata et acute squamata. Pedes natatorii 4 ultimi late lamel- 

 lati. 



Subfam. 3. CECROPINiE. — Pandarinis affinis. Corpus antice non 

 Iatius. Tubi ovigeri sub corpore convoluti. Antennae anticae in- 



* The posterior feet are much shorter than in Caligus or Lepeophtheirus, and have 

 not the long finger-like spine at the extremity. Yet ic should be observed that the 

 Caligi graduate into the same form nearly j and as Krbyer suggests, it is probably only 

 a form of Caligus. 



t Edwards in his Crust., iii. p. 461, has the division Pandariens, but it does not corr 



respond to our Pandarinae. 



r 338 



