316 On the Classification of the Crustacea Choristopoda. 
_ 2, Manus pedis 5ti elongate lineares, digito recto, longissimo, tenvi. 
G. 3. Tuemisto, Guérin.—Pedes 3tii 4tique prehensiles, manibus Iatis. 
Subfam. 3. ORCIN ©.—Pedes 5ti 6tive valde elongati et crassi, sed manu 
non confecti. adie breves.] 
G. 1. Puorcus, Hdw.—Pedes Imi as he ge graciles, unguiculati, 5ti 6tique 
prelongi, 5ti aciculares, 6ti crassi: 
Fam. II]. TYPHIDA.* 
Antenne 2dz sub capite thoraceve celate et sepius replicate. Ab- 
domen in ventrem sepe se flectens. Pedes 6 postici interdum abbre- 
Viati, articulo Imo operculiformi, interdum longitudine mediocres. 
Subfam. 1. TYPHIN A‘.—Abdomen in ventrem se flectens. 
. 1, Drrayrus, Dana—Pedes 5ti 6tique articulo 1mo latd lamellati, articulis 
reliquis omnino obsoletis. ete a breves, sub capite celate, non repli- 
tz, articulo Imo longiore qua’ jie 
G. 2. Typms, Ri isso.—Pedes 5ti étiqne eer 1mo late Jamellati, articulis re 
quis paulo abbreviatis. Antenne 2d biplicate, articulo 1mo longiore quam 
G. 3. Tar opus, Dana.t—Pedes 5ti 6tique articulo Imo late lamellati, artic aa 
og paulo abbreviatis. Antenne 2dx 4-5-plicate, sub thoracis latere ce 
articulo Imo multo breviore quam 2dus 
Subfam. 2. PRONOIN A. —Abdomen in ventrem se non fleetens. Caput non 
oblongum, antennis frontalibus. 
G. 1. Proxor, Guerin. ihe: 2di — on Pedum 6 posticorum articuli 
Imi fur reliqua part 7 ‘Tmi f obsoleta. 
G. 2. L ana. “Pe es 1 mi Baigue subchelati 3 ri —_ 6 posticorum 
Imi ang usti, subeequi, reliqué parte paris Tmi paulo abbr 
Subfam. 3. OXYCEPHALIN 2.—Abdomen in Msn pion flectens. Caput 
oblongum, antennis Imis superficiem capitis inferio 
G. 1. Oxrcepuatus, Hdw—Caput breviter acuminatum. Styli caudales longitu- 
m 
G. 2. Ruasposoma, White. $—Caput rostro longo styliformi armatum. Styli cau- 
dales valde elongati. 
ee 
* * Hypérines anormales of Edwards, Crust. iii, 94. Typhide, Cat. Brit. ae 
us., 57. 
+ Species Ver Se Serox (Edw.) is ee included. 
¢ Cr amarang, p. 63, pl. 13, f. 7. 
Correcrions.—Page 305, last line, for 92, read ae 306, 5 lines from bot- 
tom, for iii, read viii, 
