346 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



31, fig. 39). Middle paleae are alternating long and short, the difference 

 between the 2 especially conspicuous (pi. 31, figs. 37, 38) ; both are some- 

 what excavate at their thickened part. Inner paleae are unique in that 

 they terminate distally in a serrated edge (pi. 31, fig. 40), especially 

 noticeable when the palea is seen from the back (pi. 31, fig. 41). I know 

 of only 2 other species from the Western Hemisphere in which such a con- 

 dition has been described ; they are S. bellis Hansen, as redescribed by 

 Augener (1934, p. 149) from Brazil, and S. moorei Monro (1933, p. 

 1064) from Balboa, Panama. In both of these the outer paleae terminate 

 in comparatively blunt teeth (pi. 30, figs. 24, 27) and the median pro- 

 longation is somewhat crenulate; middle paleae are short, excavate, all 

 resembling one another (pi. 30, figs. 25, 28) and the inner paleae are 

 distally serrate (pi. 30, figs. 26, 29). The two are hardly distinguishable 

 from one another from their only known accounts; their identity seems 

 not unlikely. 



S. floridensis differs from both S. bellis and S. moorei in having middle 

 opercular paleae alternating long and short instead of a single kind, and 

 outer paleae terminate in a long, serrated membrane. 



It is a pleasure to acknowledge thanks to the administration of the 

 Bass Biological Laboratory, Englewood, Florida, for making possible 

 collection of this material. 



Holotype.—AHF no. 59. 



Type locality. — Lemon Bay, Florida; intertidal. 



Distribution. — Lemon Bay, Florida. 



Genus PHRAGMATOPOMA Morch 

 Type P. caudata (Kroyer) 



The type of the genus remains incompletely known. Morch (1863, 

 p. 442) erected the genus, based on "Serpula caudata Kroyer," from the 

 West Indies, but it has never been adequately characterized. Ehlers 

 (1901, p. 203) re-examined the type specimen in the museum at Copen- 

 hagen and considered it close to P. virgiiii Kinberg; but, since Ehlers 

 did not recognize the genus Phragmatopoma, he placed it in Sabellaria, 

 saying that the species is readily distinguishable from P. virgini in its 

 outer opercular paleae, "die am dorsalen Umfange der Krone mit einem 

 langen, diinnen, rauhen Faden auslaufen, der schon dem unbewaffneten 

 Auge auffallt, und die auf der Flache des Endblattes stark blattrig rauh 

 sind." This description applies very well to the condition in P. lapidosa 

 (below) which Ehlers did not consider in his account. The 2 species are, 

 moreover, possibly the same as already suggested by Johansson (1927, p. 



