226 University of California Publications in Zoology (Vow. 23 
1856), ‘‘found on rocky bottoms in two or three fathoms about the 
mouth of the Bay of San Franciseo.’’ Of the ten specimens taken 
during the survey all but two are small or juvenile specimens. These 
two are large adult specimens and were both taken at Sausalito, one in 
the 150-foot seine and the other in a crab-net over the ship’s side. Of 
the smaller specimens, one of about medium size (70 mm. wide) 
was collected along the Sausalito shore; a very small one (12 mm. 
wide) was obtained from among the rocks and algae between tide 
marks at Point Bonita, while another of like size (15 mm. wide) was 
dredged in a similar environment in 214 to 314 fathoms (D 5778) 
on the south side of Golden Gate, inside of Fort Point; still two 
other juvenile specimens were dredged (D 5808, 5845) in 27 to 49 
fathoms in the outer central portion of Golden Gate. The three 
remaining specimens, also juvenile (two averaging 35 mm., and one 
measuring 8 mm. in width), were taken in two hauls of the tow-net, off 
California City (H 5185) and Point San Quentin (H 5137), respec- 
tively, at a considerable distance from the restricted area in which all 
the other specimens were taken. These tow-net hauls show a maxi- 
mum temperature of 18.2° C at the time they were made, which is con- 
siderably higher than the one given in the range of temperature of 
the hydrographic station (H 4967) to which all the other records 
of this species are referable (see page 354 and accompanying table). 
The range of temperature for this station is 8.7° to 14.3° C; its range 
of salinity, 26.6 to 33.3; a range not greatly at variance with the sur- 
face salinities (25.4 and 28.9) observed at the above hydrographic 
stations. 
Cancer gibbosulus (De Haan) 
Plate 36, figure 7 
Corystes (Trichocera) gibbosula De Haan, Fauna Japonica, p. 45, pl. 2, 
fig. 4, pl. 13, fig. 3, 1835. 
Cancer gibbosulus Rathbun, Proc. U. 8. Nat. Mus., 21, 581, 1898; H. A. E., 
10, 176, 1904; Weymouth, Stanford Univ. Publ., Univ. Ser., no. 4, 
43, pl. 10, fig. 29, 1910. 
Characters.—Carapace markedly areolated, sparsely pubescent, hairs rather 
coarse and harsh; anterolateral margin, including outer angle of orbit, with nine 
strongly produced and forward-curving teeth, all except first two tipped with 
spines, behind these on posterolateral margin a well marked tooth directed upward 
and not laterally, and a distinet spine representing the eleventh; fronto-orbital 
width one-third the width of the carapace; front with five more or less acute 
teeth (not counting the supraorbital), the three median of which are the smaller 
and are separated from the tooth at inner angle of eye by a distance greater than 
