er 
1884. ] Zoblogy. 309 
len bei unserem Wurme kann schon deshalb nicht gegen die 
Clymenidennatur desselben augefiihrt werden, weil wir ja mehrere 
Reprasentanten dieser Familie (Z. B. Clymenides Clap. oder Cly- 
menia Qtrf.) ohne die charakteristische Schwanzbildung der 
echten Clymenen kennen.” If our larva be the young of some 
member of the Clymenidz, the ciliated projections may be two 
of the characteristic papillae of this region of the adult. 
Our unknown larva has one highly characteristic Polyzoan 
er half of the 
proximate nearer the sete of Mitraria as far as position goes, 
although they are not mounted on any special prominence, and 
arise from the posterior body region which bears the terminal 
ciliated prominences. In Mitraria there are no eye-spots similar 
to those which have been described in our new larva. In the 
young Loxosoma there are two well marked ocelli. 
As only a single stage in the development of my new larva 
Was found, it is impossible to do more than speculate in regard to 
the genus of which it is the young. There is no doubt that it is 
a larval Annelid, but I am at a loss to what family of Chatopoda 
it should be referred. —/. Walter Fewkes. 
Barn Owrs N Missourt.—As in several other parts of the 
Country, there has been an unusual occurrence of numbers of the 
owl here this winter. Specimens were captured in four dif- 
ferent buildings in the city and one in the country, A number 
them made a regular resort of an unused chimney in a resi- 
nce near the centre of the city —F. A. Sampson, Sedalia Natural . 
History Society, Sedalia, Mo. 
: g Nores ON THE Rep-winc BLACKBIRD.—I examined to-day 
nests of this bird (Age/eus pheniceus) in a prairie, though 
nl my residence. There was but one egg in one of the nests, 
eit in another, and four in another. One nest hada very young 
and three eggs, while the fifth nest contained four little birds 
about one-fourth grown. All of these but one, I am confident, 
In; : : 
is = 'S very difficult to reconcile the hypothesis of Metschnikoff, that the Mitraria 
stage of a genus ymenidz, and the larvæ of Clymenella and 
No. 2), 12 Dt E. B. Wilson (Stud. f. Biol. Lab. Johns Hopkins Univ., Vol. 1 
latter none of res given in the excellent embryology of his worm -A 
two. Unti si an or ; 
Mets a a larger number of older larva of Mitraria are known, its reference by 
to the Clymenidz i thetical. 
must remain more or less hypotheti 
