57 
AN ATTEMPT to ELUCIDATE the REAL STRUC- 
TURE and RELATIONS of MOSS’S 
POLYSTIGMATIC APPENDICULARIAN. 
By Water Garstane, M.A., 
JESUS COLLEGE, OXFORD; BERKELEY FELLOW OF THE OWENS COLLEGE, 
MANCHESTER, 
With Plate V. 
[Read March llth, 1892.] 
THE Appendicularian, the account of whose structure 
has so often interested and puzzled the student of the 
Tunicata, was described in 1871 by its discoverer, Assis- 
tant-Surgeon EK. L. Moss, R.N., in words which will be 
quoted shortly. In 1888 Professor Herdman* gave it 
the name Appendicularia Mossz; in his recent ‘‘ Revised 
Classification of the Tunicata,’’ +t however, he has renamed 
it Mossta dolioloides. I agree with Professor Herdman 
in his removal of the species from the genus Appendic- 
uwlarva, but I shall endeavour to shew that no new genus 
is necessary for its reception, as it appears to find its true 
place within a generic group already established. Still I 
shall find it convenient, in the earlier part of my remarks, 
to refer to it under the distinctive name Mossva. 
The following is the original description of Mossta given 
in Moss’s paper :—t. 
‘“‘T have lately captured a new short-bodied form, in the 
warm surface-water of the Atlantic, near the Line, and 
* Report on the Tunicata ot H.M.S. ‘‘ Challenger,” 3rd part, vol. xxvii, 
p. 124. 
+ Linn. Soc. Journ., xxiii, 1891, p. 650. 
tOn the Anatomy of the genus Appendicularia, with the description of 
a new form. Trans. Linn. Soc., xxvii, 1871, pp. 299—304, Pl. xlvii. 
