22 
SMITHSONIAN MISCELLANEOUS COLLECTIONS 
VOL. 98 
Tcleoplirys crisfuVipcs Stimpson (i o\ig., i ju\-) 
Pachvgrapsits ininutiis Milne-Edwards i? ovig., 20 juv. 
In the figure given by Milne-Edwards for P. inuiutiis (\ouv. 
Arch. Mus., Paris, voh 18, p. 292, pi. 14, fig- 2, 1873) the posterior 
border of the inerus of the last pair of legs is without ai mature 
except at the postero^listal angle. 
The merus of the last pair of legs of P. mnrrayu as Caiman states 
(Proc. Zool. Soc. London, 1909, p. 708, pi. 72, figs. 4, 5, 1909) ,, “has 
two smaller teeth [besides those at the postero-distal angle] side b\ 
side near the proximal end.” One could perhaps better describe these 
tw’o small, yet somewdiat elongated, juxtaposed teeth as a bidentate, 
tuberculiform tooth. Erom betw^een the twm denticles of this bidentate 
tooth a stiff hair or seta arises, proximal to this tooth aie two 01 thiee 
little denticles on the inner, ventral margin of the joint. The upper 
margins of the ambulatory legs are furbished wdth a close-set fringe 
of “feathered" setae, thickest on the propodi of the last pair of legs, 
and probablv present on all joints, dhe hairs of this fringe aie easil}/ 
broken off, at least in preserved material, as they are more or less 
w’antmg on certain legs and joints. Such a fringe is not mentioned 
by Dr. Caiman nor shpwm in his figure of the type. The front of 
our specimens is about, or a little more than, half the wfidth of the 
carapace ; otheiwvise Caiman’s description of mitvvayi fits them almost 
exactly. 
Because of this apparent difference I w^as inclined to believe Cai- 
man’s species other than the one briefly described by Milne-Edw’ards. 
Howxver, the view’ of a number of authors that the foimer is 
identical wath the latter is fully suhstantiated m a communication 
w’hich I recently received from Prof. L. Page, of the Museum 
Eational d'Histoire Xaturelle, Pans, to wdiom I am more than 
grateful : 
Je viens d’examiiier les cinq echantillons de Pachygrapsus mimitus qui ont 
servi a la description de Milne-Edw^ards. Ils possedent la petite epine geminee 
an bord posterieur du meros de la derniere paiie de pattes. ^ 
J’ai compare ces echantillons avec la fig. du Scsarma miirroyi et je ifai trouvl 
aucune difference. 
La synonymie n’est pas douteuse. 
Percnon abbreviatnin (Dana) 2 ju\., (c?$) 
A first eastern Pacific record for the species, originally described 
from Tahiti and taken §ihce that time in the Indian Ocean, and at 
Hawaii, Etaning, Ocean, and W ake Islands. 
In the absence of an available key to the valid species of Percnon^ 
the followdng tentative one is offered. 
