500 PROCEEDINGS OF THE ACADEMY OF [July, 



the same species from several specimens from Jamaica and Curacao 

 and Treadwell recorded it from Porto Rico. The P. macrasoma 

 Schmarda, 1861, is distinguished by its 2-lobed collar (which possibly 

 may have been mutilated) and more elongated form with compara- 

 tively small operculum. The P. brachysoma is relatively short of 

 100 segments with a very large operculum plashed with chocolate 

 brown, the branchise and pinnae banded with the same color. 



Benedict, 1886, and Ehlers, 1887, record Spirobranchus giganteus 

 (Pallas) Morch, S. tricornis (Morch) Ehlers, S. pseudoincrassatus Bush, 

 1905 (for incrassatus Benedict, 1886, non Kroyer). and S. dendropoma 

 Morch, 1863, from off Florida and the West Indies. Other serpulids 

 recorded from this region and Bermuda are Crucigera Websteri Benedict, 

 1886, Hyalopomatus Langerhansi Ehlers, 1887 (which is not a true 

 Hyalopomatus), Cymospira (?) polycera Schmarda, 1861, Paravermilia 

 annnlata (Schmarda, 1861) Bush, 1907, not Yermilia annulata Ehlers, 

 1887 = Paravermilia Ehlersiana n. n., Paravermilia Bermudensis 

 Bush, 1905 and 1907, P. amblia Bush, 1907, P. intermedia Bush, 1907, 

 Pseudovermilia occidental i* (Mcintosh, 1885) Bush, 1907, P. pileum 

 Bush, 1907, Spirorbis formosus Bush, 1905, Spirorbis mutabilis Bush, 

 1905, and Rhodopsis pusillus Bush, 1905. 



Bibliography. 



ArGENER. H. — Bulletin, Museum Comparative Zoology, Vol. XLIII, 1906. 

 Benedict, J. E. — Proceedings, United States National Museum, Vol. IX, 1S8G. 

 Bush, K. J. — Harriman Alaska Expedition, Vol. XII, 1905. American Journal 



Science. Vol. XXIII, January and February, 1907. 

 Caulery, M. and Mesnil, F. — Bulletin scientif. de la France et de la Belgique, 



Vol. XXX, 1897. 

 Ehlers, E. — Memoirs, Museum Comparative Zoology, Vol. XV, 1887. 

 Marion F., and Bobretzky, N. — Annales des Science Naturelle, Vol. 6, 1875. 

 McIntosh, W. C— Challenger Voyage, Vol. XII, 1885. 

 Morch, A. L.— Naturhist. Tidsskrift, Vol. I, 1863. 

 Schmarda, L. K— Neue Wirbellose Thiere, Vol. II, 1861. 

 Treadwell, A. L— Bulletin, U. S. Fish Commission, Vol. II (for 1900) 1901. 



Explanation of Plate XXXVI. 



Fie. 1. — Paravermilia amblia Bush. Side view of operculum; a, abdominal 



seta; b, thoracic seta. 

 Fig. 2. — Pseudovermilia occidentalis (Mcintosh) Bush. Front and back views 



of operculum; a, collar seta; b, seta from 2d segment. 

 Fig. 3. — Spirorbis mendosus n. n. for S. cornu-arietis Marion and Bobretzki, 1875, 



non Philippi, 1844 + Caullery and Mesnil, 1897. Side view of calcareous 



plate of operculum. 1 



1 Figures 3, 4, and 6 are from specimens described by the author in 1905. 

 from Beirut, Syria, page 288. 



