664 A. E. Verrill — Turbellaria, Neinertlna, and 



following ones they are in two close, parallel rows, facing one 



another. They are minute, with a wide base, broad anteriorly; the 



rostrate hook is large, acute; the two apical hooks are very small. 



They resemble the uncini of N. simplex V. and of N. venxtstida, as 



figured by St. John, but the base is broader anteriorly than in the 



latter. 



The setfe are slender, 3 or 4 longer and 2 to 4 smaller and shorter; 



all ai"e slender, smooth, narrowly bilinibate, acute. 



Length, in formalin, IS'"™. Bailey Bay, low-tide. 



Loimia Bermudensis, sp. nov. 



A rather stout species with three j^aii's of large, subequal, truly 

 arborescent branchiae, which have a rather long stem and very- 

 numerous branchlets, taking a somewhat conical arrangement when 

 expanded. The lower lip is large, broadly rounded, and projects 

 freely. There is also a large lobe partly behind it on each side. 

 The buccal segment forms a broad hood-like fold in front of the 

 bases of the cirri. There are also two lateral lobes on each side, on 

 the 1st and 2d segments, below the bases of the anterior branchiae. 

 The fascicles of setae commence, of full size, on the 3d branchiate 

 segment, and are pi-esent on 17 segments. The fascicles contain 

 about 32, in two rows, decreasing gradually in length. The larger 

 ones are scarcely limbate, and taper gradually to sharp points. They 

 are smooth except at the tips, where they are, in most cases, finely 

 denticulate. The smaller ones,are much more distinctly pennate on 

 one side along the distal portion. Rows of uncini begin on the 2d 

 setigerous segment; the rows are long, with very numerous large 

 uncini, which on certain segments stand back to back in two parallel 

 rows, with a parabolic ventral prolongation. They are higher than 

 long, with five large, sharp, incurved hooks, decreasing somewhat 

 distally; the base is oblique and convex, with an angular posterior 

 lobe for the attachment of the ligamental filament and with a slender 

 proximal process for the muscle attachment. 



Color, salmon or pale flesh-color, in life. 



Diameter 5 to 6""™; length of the longest, in formalin, 45™"', 

 mutilated posteriorly. 



The tube consists of a thin tough lining, covered with loosely 

 adherent coarse fragments of shells, etc. Two specimens were 

 taken. 



Bailey Bay, low-tide, under stones. 



