BARBADOS-ANTIGUA REPORTS 57 
placing them by a new fringe. Another specimen that had lost 
its posterior region was growing a new tail. Sir J. Dalyell 
noted in Dasychone that in the springtime the branchial crown 
was regenerated in about a month, while in winter a longer 
time was necessary. He also cut a Dasychone into three pieces. 
He reports the regeneration of parts as follows: ‘‘The hinder- 
most produced a head, the anterior piece developed an anus, 
and the middle portion formed both head and tail!’’ This ex- 
tensive power of regeneration is of extreme value to the 
Polycheta. 
The species identified and described in this paper seem to be 
peculiar to the tropical regions. In Vol. XII of the ‘‘ Harriman 
Alaska Expedition Reports’’ Miss Katharine Jeanette Bush in 
her report on the ‘‘Tubicolous Annelids of the Tribes Sabellides 
and Serpulides from the Pacific Ocean’’ does not record any 
of the species herein noted. Neither does J. P. Moore mention 
any of the species of these groups in his report of the ‘‘Sabel- 
lide and Serpulide from Japan.’’ Prof. A. L. Treadwell, how- 
ever, reports some from Porto Rico, Dry Tortugas, and the 
Bahamas. E. Ehlers has recorded and described a number from 
the Florida region. Ludwig K. Schmarda reports on some from 
Jamaica, and J. E. Benedict includes some in a report from 
Bermuda. 
In considering the group as a whole the Leodicide has the 
greatest number of genera represented. There are perhaps 
eight to ten genera, but in many instances there is only one 
specimen to a species. In number of individuals Sabellide sur- 
passes all other groups, as there are hundreds of specimens in 
several of the species collected. 
ADDENDUM 
In the foregoing pages the writer has stated that she had 
been unable to find a description of the genus Bispira. Since 
this paper has gone to press, however, she has received through 
the Library of the University of Iowa a copy of ‘‘The British 
Marine Annelids, Volume IV, Part II, Polycheta, Sabellide to 
Serpulide,’’ written by Professor W. C. McIntosh and pub- 
lished by the Ray Society, London, 1923. In a short discussion 
of the genus Bispira Professor McIntosh states that the ‘‘bran- 
