52 IOWA STUDIES IN NATURAL HISTORY 
the body, the torus is ventral to the sete fascicles. The setxe of 
the first setigerous segment are of two kinds: one is long, slen- 
der, and shaft-like, with the apex bent and narrowed to a 
point; the other is stout, with apex rounded and covered with 
spines, and terminating in a short, slender point. The sete are 
of two kinds: slender forms with curved apex, the bent portion 
having spines; and stouter forms with rounded ends. The 
uncini in the torus are arranged in a single row in comb-like 
fashion. They are S-shaped. 
Specimens of these tube-dwelling worms were found inhabit- 
ing mud tubes in a tide-pool at Barbados. 
Localities: Dry Tortugas; Barbados. 
? Bispira melania (Schmarda) 
Plate I, Figs. 1 and 2; Plate II, Figs. 1, 2, 3, and 4; Plate III, 
Figs. 1 and 2; Plate IV, Figs. 1, 2, 3, 4, 5, 6, 7, 8, and 9 
Following a recent determination of Professor Treadwell’s 
the writer is placing this specimen provisionally in Bispira. 
She, however, has never read a description of this genus and 
is therefore unable to verify the assignment. Schmarda des- 
cribes the species in question as Sabella melania in the follow- 
ing manner: 
Sabella melania Schmarda 
Taf. XXIII. Fig. 192 
Char. 
Die Farbe des Kérpers ist ein dunkles Braun, beinahe schwarz; die 
Kiemen sind heller, die Fadchen abwechselnd schwarzbraun und gelbbraun. 
Die Lange des Kérpers ist 150 mm, ein Drittel davon auf die Kiemen 
(46:100). Er zahlt 144 Ringe. Die Borsten der sechs oberen grossen 
Biindel und die folgenden zeigen nur Kleine Grossenunterschiede. In 
allen sind zweierlei Borsten, die einen haben parallele Conturen, die andern 
haben den einen Rand unter einen sehr stumpfen Winkel gebogen. Die 
Hakenborsten sind S-formig, leicht gestreift. Die Rohren bestehen aus 
Schlamm. 
Port Royal in Jamaica, in einer Tiefe von 2-10 Meter, gesellig 
beisammen. 
These tube-dwelling worms are found on the old sea-wall 
surrounding the Dockyard at English Harbor, Antigua. With 
their plumy, graceful, vari-colored branchial crowns extending 
above the tubes, they present a gorgeous spectacle like an ex- 
