LOXOSOMA LOXALINA AND LOXOSOMA SALTANS. 117 
Loxosoma loxalina and Loxosoma saltans 
—Two New Species. 
By 
Richard Asshetoii, M.A., 
Lecturer on Biology in Guy’s Hospital, University of London. 
With Plates 6 and 7 and 4 Text-figs. 
The genus Loxosoma is remarkable among Polyzoa in 
having the iopliophore placed more or less obliquely to the 
main axis of the stalk instead of being at right angles as in 
other Polyzoa, and in being solitary, for the buds, which 
are formed readily enough, drop off before they have reached 
any great size, and attach themselves to the surface of some 
other organism or neighbouring object by means of diverse 
forms of adherent arrangements in the end of the stalk or 
foot, which varies a good deal in shape. The species, of 
which rather more than a dozen have been described, are 
all commensals living fixed on to other organisms or upon 
the tubes inliabited by other organisms, which may be 
Polychaetes, Sponges, Ascidians, Gephyreans, and probably 
other animals as well. 
Among these there is a form called Loxosoma annelidi- 
cola, which was originally mistaken for a Platyhelminth , 
and called Cy cl atel la annel i d icola, having been found 
by P. J. Van Beueden and C. E. Hesse in 1865 on certain 
Maldanid Polychtetes, but which subsequently was recog- 
nised as an Entoproct, and so described by Prouho in 1891. 
Prouho found the species on the Clymenians Nicomache 
lurnbricalis and Petaloproctus terricola. 
