ARACHNOIDEA. 573 
Pycnogonum BRUENN. Body depressed. Feet not longer than 
body, thick. 
Sp. Pycnogonum littorale, Phalangium balenarum L., Baster Nat. Vitsp. 
i. Tab. x11. fig. 3, A—D, Patias Misc. Zool. Tab. xiv. figs. 21—23, 
GuERIN Jconogr., Arachn. Pl. 4, fig. 1; this animal, with other marine 
productions, is often cast upon our beach dead. The pair of feet that the 
female possesses above the male was already noted by BASTER as a sexual 
difference. 
Proxichilus LAtTr. (in part), Epw. Body linear, feet slender, 
very long. 
Sp. Proxichilus spinosus Mont., Cuvier R. Ani. éd. ill., Arachn. Pl. 21, 
fig. 2. 
B. Two mandibles chelate, palps none. 
Phoxichilidium Epw., Kronyer (Orithyia Jounst.) Accessory 
feet proper to females alone, without claws. 
Sp. Phoxichilidium femoratum, Nymphon femoratum, J. RATHKE Skrivter af. 
naturh, Selskabet, v. 1. Kidbenhavn, 1799, p. 201, PI. v. fig. H. 
Pallene Jounsr., Kroryer. Accessory feet in both sexes ter- 
minated by a claw. 
Sp. Pallene spinipes, Pyenogonum spinipes Oru. Fasr., Fauna Groent. p. 232. 
C. ‘Two mandibles; two palps. Accessory feet, oviferous in 
both sexes. 
Zetes KROEYER. Rostrum very large, biarticulate. Feet scarcely 
longer than body. Mandibles filiform, short, not chelate. 
Sp. Zetes hispidus KROEYER. 
Paribea Puruiprt. 
Nymphon Far. Rostrum uniarticulate, elongate. Mandibles 
chelate. Feet very long (surpassing the length of animal three 
times or more). 
Sp. Nymphon grossipes, Pycnog. grossipes O. Far. (in part), GUsRIN 
Iconogr., Arachn. Pl. 4, fig. 3. 
Ammothea Lracu. 
Sp. Amm. carolinensis Leacu 1. 1. Tab. 13, Encyclop. méth. Crust. et Ins. 
Pi yS 27optie OL 
D. Mandibles none, two palps. 
Endeis PHiuirrt. 
