3 
Neither the Entomostraca, which include the Cyclops, Cypris, Daphnis, and 
many other tribes, nor the Barnacles or Cirripedia of this coast have yet been 
studied, and I trust that this short enumeration of a few of the things that 
want doing may stir up some of our members to do them. 
The collection of Crustacea in this museum now includes about 320 species, 
almost all from this coast or from the islands of the Pacific. Scarcely any 
European or Atlantic coast species, and none from South America, Australia 
or Africa, have yet reached us. 
I have purposely made my technical descriptions short, giving only those 
salient characteristics which distinguish the species, but it is my hope to sup- 
plement these descriptions by a series of photographs of the new forms—a 
hope warranted by the present financially satisfactory state of this institution. 
Inachus tuberculatus. 
Rostrum, short, entire; pre-orbital spine marked only by the angle of the 
orbit; post-orbita! spine slightly longer than the eyes; medial region of 
carapace with several small tubercles; posterior, with a large central tubercle 
surrounded by a ring of smaller tubercles; postero-lateral regions, with sev- 
eral small tubercles; all the regions prominent and separated by well marked 
depressions, three last joints of first pair of feet with scattered tubercles, 
manus stout; second pair of legs 27% times the length of the post-rostral part 
of the carapace; sternum and abdomen with scattered tubercles. 
Dimensions of two specimens: 
Length. Width. Length of 2d pair, 
IMM ail Ole cre asapteieisanciaisi Mr attrels siebolamiateiais « swe Onto 0.55 1.55 
NES cdpacas aor 6 5 OgUCCCO OGone 0.56 0.38 0.94 
Dredged in eight fathoms, upon a rocky bottom covered with weeds, at the 
mouth of San Diego Bay, by Henry Hemphill. This, and the following 
species, are the first examples of the macropodidae found on the Caltfornia 
coast. 
Microrhynchus Hemphillit. 
Rostrum, short, entire; form of carapace, long and narrow triangular; 
post-orbital spine, small; antero-lateral margin marked by a line of hairs; 
1st pair of legs short, the meros extending to the line of the eyes; 2d pair, 
more than three times the length of the post-rostral part of carapace; 3d, 4th, 
and 5th pairs diminishing in length, the last a little less than twice the length 
of post-rostral part of carapace. A few scattered hairs on the two last joints 
of the four hinder pairs of legs, especially on the fourth joint. 
A single male specimen of this species was dredged, in seven fathoms of 
water, in the Bay of San Diego. Length, 0.75; width, 0.33; length of 2d pair 
of legs almost two inches. 
Pisoides? tumidus. 
Rostrum, bifid, moderately long; no pre-orbital spine; post-orbital spine 
small; first joint of external antennae very wide, prolonged into a point ex 
