490 CALIFORNIA ACADEMY OF SCIENCES. 118 
Family TETRAODONTIDZ. 
191. Spheroides annulatus (Jenyns) var. po/ztus Girard. 
TAMBOR. 
Very common everywhere in the Astillero. Specimens 
entirely smooth, and those variously prickly, were ob- 
tained; prickly ones, both young and old, were found, 
but no very young which were smooth. There seems to 
be no specific difference recognizable among these. All 
of them, however, differ from specimens taken farther 
south in the larger size of the dark spots and in a some- 
what greater tendency to smoothness of the body. All 
of these, smooth or rough, seem to belong to the form 
called folitus, which is probably the northern form or 
representative of Spheroides annulatus. 
192. Spheroides lobatus (Steindachner). BoTere. 
Rather common in the estuary with the preceding, 
reaching a smaller size, the largest seen not over six 
inches in length. The species was first described by 
Steindachner from Altata, but until its recent discovery 
in the Albatross collections it was confounded with 
Spheroides angusticeps (Jenyns), from which it 1s prob- 
ably distinct, although the latter, entirely smooth and 
uniform dusky in color, may prove to be the adult form. 
In both species the two small black flaps on the shoulder 
are present, and in both the interorbital space is very 
narrow and concave. Specimens taken at La Paz by 
Mr. James A. Richardson are intermediate in color, but 
retain the prickles. 
In life grass green, with maroon colored spots and 
markings. 
