ZOOLOG-T OF FEENANDO NOEONHA. 
563 
variation may occur in Earthworms ; since with the exception of 
Beddard’s paper on Peri onyx (Journ. Linn. Soc., Zool. 1886, 
p. 308), we know absolutely nothing of the subject, and the 
present specimen forms a step between Z7. cordihrura and 
D. dubia. 
The two small worms resemble the specimen A in colour and 
in external characters ; the clitellum is, however, undeveloped, 
so that they are probably young specimens of the same worm. 
The worm B is longer than A, and of a somewhat different 
colour, being of a rather more reddish or viclet-brown tint. 
The body-wall is transparent, and showed white pyriform sacs 
through it much more distinctly than is the case with A. 
The worm is, however, so soft that no setae protrude, and I 
was unable to satisfy myself as to their exact arrangement 
posteriorly; anteriorly they are paired; posteriorly they are 
scattered, but whether regularly or not I cannot be positive. 
The clitellum occupies somites xiv. to xxix., and is thus 
rather more extensive than in A ; but the worm is so soft that 
it’ is difficult to count with accuracy the somites, as some of 
the rings may be merely annuli. Thus far, then, we have no 
indication as to its genus ; but on opening it, the arrangement of 
the septa, seminal reservoirs, and spermathecse are seen to agree 
with what is found in A. 
This second worm is therefore TJrocJiceta, and doubtless the 
same species as the preceding. 
It will be seen that I have made no morphological studies of 
these worms, nor sought to do more than identify them. Indeed, 
they were too badly preserved to be of any use histologically, 
and I should not have felt justified in sectionizing them even if 
they had been in good condition. 
The fact that these worms belong to the genus Urochceta , 
which has been already described from Brazil and some of the 
neighbouring islands, lends considerable support to Mr. Kidley’s 
supposition that they have been imported from the mainland in 
the mould in which cultivated plants were brought to the island. 
In conclusion I must express my best thanks to Air. Bidley 
for allowing me to examine and identify them. 
