C. Spence Bate on the Pencidea. 181 
upper and smooth and straight on the lower margin. Flagella 
of the first pair of antenne slender and short, about half the 
length of the peduncle. 
Length about 3 inches. 
Inhabits the coasts of India. Taken off Madras by Sir 
Walter Elliot. 
The specimens in the Museum are labelled “‘ Bombay.” 
The female does not exhibit any distinctly formed ventral 
plate, from which I presume that it has not attained its full 
development. ‘The male has the petasma approximating that 
of P. afinis, yet with characters sufficiently distinguishable to 
determine the species. 
Peneus avirostris, Dana (United States’ Exploring Expe- 
dition, p. 603), belongs, I think, to this species. It appears to 
be a full-grown specimen. 
Length 5 inches. 
It inhabits the coast near Singapore. 
Peneeus Philippi, n. sp. 
Rostrum horizontal and straight in the male; slightly de- 
pressed over the distal extremity of the eye and again raised 
in the female; six or seven teeth on the upper surface of the 
rostrum, and one on the gastric region. Hye large, ovate, 
‘half the length of the rostrum. First pair of antenne with 
the peduncle not longer than the rostrum. Flagella about half 
the length of the peduncle. Telson furnished with three 
spines on the lateral margin. Male having the petasma folded, 
long and narrow, somewhat like P. velutinus, but has the plate 
on the left side, which is the longer of the two, rolled over 
anteriorly. The female has the ventral plate longitudinally 
divided and bilobed. 
This species was taken off the Philippine Islands in about 
100 fathoms of water. I have dedicated it to Philippi, who 
has written of the family ; hence the specific name. 
Peneeus anchoralis, n. sp. 
Rostrum horizontal on the upper margin; eight teeth 
on the rostrum and one distant on the gastric region. 
Lower margin smooth and gradually ascending in a curved 
line to the apex. ‘The frontal margin is armed with a small 
supraorbital, and with antennal and hepatic teeth. The third, 
fourth, and fifth somites terminate in a small dorsal carinate 
tooth. Telson unarmed; but a small notch looks as if, in 
unworn specimens, a small spine might exist on each side. 
Length 34 inches. 
Taken south of New Guinea in 28 fathoms of water. 
