Rathbun.— SOUTH AMERICAN CRUSTACEA 
49 
The species approaches in form LopJiopanopeus but the legs 
are not cristate. 
Pilumnoides perlatus (Poeppig). — ( Lám. II, fig. 1 and 2). 
Hepatus perlatus Poeppig, Arch. f. Natur., II, pt. 1, p. 
135, pL IV, fig. 2, 1836. 
Pilumnoides perlatus, Milne ElUvards d' Lucas, D'Orbig- 
ny's Voy. l'Amér. Mérid., VI, pt. 1, p. 21, 1843, atlas, 
IX, Crust., pi. IX, fig. 1, 1847: A. Milne Edwards, Miss. 
Sci au Mexique, p. 304, pi. LIV, fig. 6, 1880. 
Valparaiso Bay; C. E. Porter; one male two females. 
Length of male 18 mm., width 23.3 mm. Length of ovige- 
rous female 10.2 mm., width 13 mm. 
Galathea Lenzi, sp. iiov. (Lám. Ill, fig'. 1). 
Galathea latirostris Len^, Zool. Jahrb., Suppl. V, p. 
742. Not G. latirostris Dana. 
Corral, Prov. Valdivia; four specimens. 
These specimens agree well with Lenz's description. G. la- 
tirostris Dana differs in having three large prominent teeth 
on either side of the rostrum, and the first pair of feet are spar- 
sely spinolous. 
Hippolysmata Porteri, sp. nov. (Lám. Ill, fig. 4). 
Carapace dorsally carínate in anterior two-fifths of carapace. 
Rostrum reaching end of first antennular segment, curving 
downward, armed above with six sharp curved spines, the 
largest of which are above the base af the eye-stalk; two mi- 
nute spines below. A strong antennal spine; no pterygosto- 
mian spine. Eyes stout, axial greater than transverse diameter; 
cornea black in alcohol. Second and third segments of an' 
tennular pedmicle nearly as long as wide; basal spine . slender 
not reaching end of first segment; fiagella as long as abdomen. 
Antennal scale slender, two-thirds as long as carapace, its spi- 
ne projecting well beyond the blade; peduncle reaching bet- 
