Zoology. 433 
G. 3. Perinia, Dana.*—Carapax orbiculato-ovatus, tuberculis pau- 
cis non acutis ornatus, rostri cornubus brevibus, discr retis. Ar. 
: ticulus antennarum ext. Imus oblongus, apicem non latior, an- 
gulo externo valde producto. Orbita anticé aperta, margine 
superiore non unifisso.. 
G. 4. Hauimus, Latreille—Carapax a — cornubus 
rostri grandibus, divaricatis. Articulus antennarum ext. Imus 
angustus. Articulus pedum 8 ee Po se S compres- 
sus, processu infra non armatu 
G. 5. Puserria, Dana. seotsinlect triangulato-ovatus. Rostr 
antennisque ext. Halimo affinis. Articulus pedum 8 sonicated 
5tus cylindricus. 
3. MENA THIN. gre integrum aut subintegrum. 
“1. Menxrutivs, Edwards.—Carapax triangulato-ovatus, depres- 
sus, regione antero- islerati plicis tribus plus minusve ornata. 
Pedes 8 postici cylindrici 
G. 2. Acantuonyx, Latr. a rapax depressus, non tuberculatus, 
sive subtriangulatus sive subquadratus (dente post-orbitali dila- 
dente preorbitali parvulo, ros- 
8 postici mediocres, 
apic 
( 8 posticorum eae infra non dilatatus nec ; dentigerus 
niatu s, ees tea 
Jatitudine transorbitali majore (lat. 
bifido, sat brevi. 
a.\|—Cara 
preorbitali biehine sifocties 
r- 
fra non dilatatus nec 
max. 2plo lativre), rostro lato, profundeé b 
ticulus pedum 8 posticorum penultimus in 
dentigerus. 
B. Antenne externe sub rostro celat@. 
1. Oculi prelongi. 
4. STENOCIONOPIN 4. —Rostrum longum, furcatum, cornubus styli- 
Lat treille.—Carapax subpyriformis, tp 
spina preorbitali longissima. Articulus antennarum ex . ob- 
longus. 
2. Oculi aut longitudine mediocres aut perbreves. 
5. EPIALTIN.—Rostrum — crassum, sive integrum § 
emarginatum. Ante t. apicem rostri sepius non pane ‘ 
SP 
gentes. Pedes 8 availed  subeylindrici. 
fey ee eee Be es may be longer pedunculate, and as there 
it i parent ne fe t etractile or not. species 
svanttine The beak i haat Por and the 3d basal joint of the 
‘reaches of beak. 
3 ‘AE Zool This volume, p. 272. 
ear Wo t— Bing, 1881- 55 om, 
971. Thid, 
phus d d Souleyet, as ed i A 
Ai of Eydoux an siinel'e spine or tooth, outer antenne, and ' 
- 
é 
