NO. 6 
DECAPOD AND OTHER CRUSTACEA — SCHMITT 
II 
observed are no more than of subspecific rank. More material from 
both coasts of America is much to be desired. It is probable that 
Lockington’s record of three specimens of C, typa from La Paz in 
the Gulf of California is based upon specimens identical with those 
from the Tres Marias Islands and Socorro. 
Pcfrolisthcs near cinctipcs Stimpson ij' 
Calcinits obscurus Stimpson 3 
Coenobita coinpressus Guerin i 
Grapsus grapsiis (Linnaeus) ij' 
Lcpfodhis cooksoiii Miers. . . . ^ ^ .ij 
0 ::ius pcrlatus Stimpson ij' 35 
Socorro Island, Mexico, July 20 (sta. /•■38) on land, back of 
beach under rock. 
Gecarcinus planatus Stimpson i 
Socorro Island, Mexico, July 20 (sta, 8-38), boat dredge, twd 
hauls, 7-8 fathoms, sandy bottom, from ofif landing beach toward 
rocky point forming east side of cove where landing is located. 
Callianassid i fragment 
Clibanariiis panamcnsis Stimp^oh i 
Clipperton Island (French possession) , July 21 (sta. 9-38) , shore 
collecting at Clipperton on rocks to south of landing place (on north- 
eastern shore of atoll), 
CRANGON HAWAIIENSIS CLIPPERTONI, n. subsp. 
Holotype . — Largest of eight specimens, a female approximately 
13 mm. long, upper margin of palm of large hand 4.4 mm., chela, 
over all, 5.6 mm. (U.S.N.M. no. 77789). 
Description , — This apparently new form differs but slightly from 
the description and figures given by Edmondson for his C. Jiazvaiicnsis 
(Bull. Bishop Mus., No. 27, p. 14, fig. 2, 1925) ; so slightly, indeed, 
that I asked Dr. Edmondson to reexamine his unique type in the light 
of the differences that I did discover. 
In our Clipperton Island type and the specimens accompanying it 
the inner side or surface of the larger chela is smooth, as in the 
species proper ; the outer side also appears smooth on casual inspec- 
tion, but when excess moisture is removed, the presence of two not 
tery conspicuous longitudinal grooves is revealed on the outer face 
