260 Mr. T. Vernon Wollaston on 
Madeira we met with it, rather abundantly, on the 30th 
of March, on the Ponta de Sao Lourenco-—the low rocky 
promontory which stretches out, in the direction of the 
Desertas, in the extreme east of that island. Hence there 
is every reason to suspect that it will be found on the 
northern Deserta likewise, and that the species is conse- 
quently wniversal (on the sea-cliffs of a low elevation) 
throughout the Madeiran Group. It is remarkable how- 
ever that, so far as Madeira proper is concerned, the Sao 
Loureng¢o promontory would appear to be its peculiar 
habitat; a fact which affords another instance of the 
curious affinity which that singular tongue of land pos- 
sesses, not merely with the Desertas (from which it is 
separated by a channel of only nine miles in breadth), 
but even (and in a still more remarkable manner) with 
the more remote island of Porto Santo. I have already 
mentioned elsewhere that the Desertan examples are, on 
the average, a trifle larger and more roughly sculptured 
than those from Porto Santo, with their prothorax just 
appreciably wider (or less laterally-compressed), and 
with their tibiz more or less obscurely darkened; and 
this state I regarded as a “var. 8,” treating the Porto- 
Santan ones as typical. The specimens from Madeira 
proper are, I find, almost similar to those from the 
Desertas ; and, moreover, amongst my original series 
from Porto Santo (collected in 1848 and 1850) there are 
several, I now perceive, which belong to the same rugu- 
lose form cited by me as the “var. 8;” though I am 
not the less persuaded, on that account, that the two 
states (although perhaps not so strictly ‘‘imsular” as I 
had suspected) are but very slightly altered races of a 
single rather variable type. Nevertheless, in order to 
define their points of difference more exactly, and to place 
on record the more extended range of the “var. 8,” I 
will cite the species afresh as follows :— 
Pecteropus rostratus. 
status a (typicus).—Plerumque subminor, ac sensim 
minus rugose sculpturatus, prothorace sub- -angustiore, 
v.€., magis lateraliter compresso, pedibus seepius omnino 
pallidis, [ins. Portus Sanctus. | 
status @ (aberrans) floricola.—Plerumque submajor, 
ac sensim magis rugose sculpturatus, prothorace paulu- 
