1926] Schmitt, Crustaceans Collected by the Congo Expedition 51 
Africa. Chevreux and Bouvier! contrast what they have taken to be 
C. xquabilis with C. senegalensis, from which our species also differs by 
the very characters they enumerate. I have been unable to obtain any 
specimens determined as C. xquabilis from the West Coast of Africa, 
though, through the kind offices of Dr. W. T. Calman of the British 
Museum, I have been enabled to examine a specimen of the variety 
merguiensis de Man? from Singapore. From the variety our species 
differs in having a longer rostral projection (in merguzensis it does not 
surpass the antennal angles of the carapace), and the eye-stalks of the 
varietal form are relatively shorter as compared both with the width 
and length of the anterior portion of the carapace, though they are 
slightly longer than the antennular peduncle. From Dana’s typical 
species as described and figured, our species appears to differ not 
only in coloration, so far as this can be determined from his text, but 
also in having the outer surface of the second and third legs not naked, 
but “pitted” or punctate with irregular colored spots, from which tufts of 
hair arise; moreover, the subacute upper margin of the propodus of the 
outer left ambulatory leg is figured by Dana (loc. cit., Pl. xxrx, fig. 4c) 
with a rather even edge; our species has it rather wavy or notched at 
intervals to accommodate tufts of hair arising from puncte within those 
“‘notches.”’ 
But Dana’s species certainly is not a very clearly defined one, and to 
me it seems probable that he has confused two different things. The 
length of the dactyl of the outer left leg, as compared to the propodus 
of his Tahiti specimens differs from that of those from Madeira; in the 
latter the dactyl and propodus are subequal, while the former have the 
dactyl only two-thirds the length of the propodus. And the manner in 
which he speaks of the Tahiti specimens being not striped almost gives 
rise to the inference that his Madeira and Cape Verde specimens were. 
Judging from distributional records, Mediterranean, Cape Verde, 
and central and northern West African species of Clibanarius do not 
ordinarily range into the Pacific, as do some of the Cape and southern- 
most West African forms. Where a West African occurrence is recorded 
for a South African or Indo-Pacific species of this genus, such as C. cli- 
banarius (Herbst),® C. virescens Krauss (recorded from West Africa by 
11892, Mém. Soe. Zool. France, V, p. 134. ‘ : 
21888, Jour. Linn. Soc., Zodl., XXII, p. 247. Alcock, 1905, ‘Cat. Indian Decapod Crust.,’ Pt. 
II, fase. 1, p. 47, Pl. rv, fig. 5. . . 
zOsorio, 1887, Jorn. Sei. Nat., Lisboa, XI, p. 228, as C. vulgaris; loc. Angola or the Congo. Thall- 
witz, 1891, Abh. Ber. K. Zool. Mus. Dresden, III, No. 3, (1890-1891), p. 33, as C. vulgaris var.?; loc. 
Ogove; given as a synonym of C. africanus by Balss, 1921, ‘Beitr. Kenntnis Meeresfauna Westafrikas, 
ITI, p. 40. 
