616 
ZOOLOGICAL LITERATURE. 
appear to have gained access to the surgeon^s limbs is exceedingly 
interesting, and probably quite correct ; but the memoir is espe- 
cially valuable for the minute and accurately recorded anatomical 
details with which it abounds. Bastian has added a large number 
of facts quite new to helminthological science ; and his demon- 
strations respecting the c£ecal mode of termination of the alimen- 
tary tube in the young worms are highly instructive. Towards 
the close of the memoir he warmly supports the notion of an 
agamogenetic mode of reproduction in this species — a view which 
he implies to have been first suggested by Carter. Throughout 
this memoir the author has most carefully rendered to all their 
due, and he has omitted none of the previously recorded data 
which, in his view, Avere worthy of being noticed. 
It only remains for us to observe that Dr. J. V. Car us has 
already given an abstract of Bastian'’s memoir in the Nova Acta 
Acad. C. L. C. Germ. Nat. Cur. vol. xxxi. Heft 4, Nr. 13, p. 125, 
1864. 
Lubbock, J. Notes on Sphmrularia Bombi. Natural History 
Review for April 1864 (pp. 265-271, with 6 w^oodcuts). 
This brief paper may be regarded as an appendix to the author’s 
lengthened memoir (^^On Sphcerularia bombi which appeared 
in the same excellent periodical for the year 1861. In the pre- 
vious communication the tmthor not only offered numerous 
structural details which were hitherto unknown, but he also re- 
corded many new and interesting facts respecting the habits and 
economy of tliis parasite. He found the worm in seven different 
species of Bombas ; and, taking collectively all the individual bees 
examined, he found 38 out of 105 to contain Sph(Brulari(B. It ap- 
pears that different bee-species vary in their liability to entertain 
the worm. Thus, in Bombas terrestris 19 out of 33 individuals 
were found infested (dmfing the months of May and June), whilst 
in B. leucoram 7 only out of 21 contained the worm, in B. mus- 
corum 1 only in 16, and in B. hortorum 1 in 13. The numbers 
infested also vary according to the time of year ; for, in his recent 
paper, Mr. Lubbock observes that ^^out of 19 bees examined in 
the month of December only 4 were attacked, Avhereas I found,^'’ 
he says, Sphserulariae in 9 out of 25 specimens dissected in 
March.^^ 
The author in his previous memoir throws much light upon 
the true zoological position of the genus Sphcerularia-, but perhaps 
the most important facts are those which relate to his discovery 
of the presumed male. Considering that he ascertained the fe- 
male to be 28,000 times as large as her supposed mate, it is not 
surprising that Lubbock hesitated to pronounce definitely regard- 
ing the sexes : however, it would seem that his original opinion 
was correct ; for not only was this legitimately so-called male 
found attached at one end of the female in every speeimen \ 
examined, but Lubbock^s later researches enabled him to discove 
