352 
Dr, Leagues Arrangement of the Crustacea, <f'C. 
Lcgio n. E D R I O P H T H A L M A. 
Latreille considered the animals which compose the first and 
part of the second section of this Legion as a family of the Ma- 
CROuiiA ; but had he been acquainted with the following new and 
curious genera, he would doubtless have formed a very different 
opinion. 
Genera. 
Sectio I. Corpus lateraliler compressum. Pedes 14. Antennce 2 1. Phronyma. 
in frontem inserice, und utrinque. {Cauda stylis instructa.) 
Sectio II. Corpus lateraliter compressum. Pedes 14 coscis lamelli- 
formilus. Antennce A per paria insertce. {Cauda stylis instructa.) 
Divisio I. Antennae 4 -articulatae, articulo ultimo e segmentis plurimis 
efformato ; superiores brevissimae. 
Antennae superiores articulis duobus inferiorum basllaribus breviores. 
Antennae superiores articulis duobus basilaribus inferiorum baud lon- 
giores. 
Divisio II. Antennae 4-articulatae, articulo ultimo e segmentis plu- 
rimis efformato ; superiores subbreviores. 
Pedes 4 antici monodactyli, manu parvula compressa. 
Divisio III. Antennae 3-articulatae, articulo ultimo e segmentis plu- 
rimis efformato; superiores longiores. 
Pedes 4 antici subaequales monodactyli, manu compressa. 
Pedum par anticum didactylum pollice biarticulato, par secundum 
monodactylum . 
Divisio IV. Antennae 4-articulatae, articulo ultimo e segmentis plurimis 
efformato ; superiores longiores. 
Suhdivisio 1. Pedes quatuor antici monodactyli, par secundum manu 
valde diktats, compressa. 
Pedum par secundum digito in palmain inflectendo. 
Pedum par secundum digito in latus anticum infiectendum. 
Sul'divisio 2. Pedum paria duo antica monodactyla conformia. 
'"Antennae superiores ad basin articuli quarti setula instructae. 
2. Talitrus. 
3. Orchestia. 
4. Atylus. 
5. Dexamine. 
6. Leucothoe. 
7. Melita. 
8. M^ra. 
9. Gammarus. 
Antennae 
