38 A. E. Verrill — Additions to the Fauna of the Bermudas. 



ANNELIDA. 

 CHiETOPODA. 



An important collection of marine annelids was made this year, 

 but it has not yet been studied in detail. A number of new forms 

 are known to be included in the lot. Among the additional genera 

 are Terebellides, PterosylUs, and others. 



Several interesting species of earthworms were also obtained, but 

 they have not yet been examined with care. 



The following large and handsome new Pectinaria was found in 

 considerable numbers : — 



Pectinaria regalis V., sp. nov. 



Plate VIII. Figures 6, 7. 



A large, stout species, with large groups of bright golden, acute 

 opercular setw, of which there are 11 to 13 in each group, the outer- 

 most and two to four of the inner ones much smaller than the rest. 



Opercular disk broadly rounded, smooth, Avith the dorsal edge 

 crenulated, and with a slender acute antenna on the ventro-lateral 

 angles ; a stouter, bent, obtuse lobule stands at the base of the ventral 

 edge, on each side. The ventral lobe has about ten slender mar- 

 ginal papillse on each half of the ventral edge, besides three or four 

 smaller ones on the incurved lateral edges. • 



The buccal segment bears a pair of slender tentacular cirri, longer 

 than the antennae, and below these, on each side, four rounded 

 prominent lobules. The gills are large, the anterior pair much the 

 larger ; below each gill there is a prominent transverse ridge 

 separated beloM' by a median glandular pad. Similar ridges occur 

 on the next two segments, but the fourth ventral pad is bilobed. 



On fifteen segments, following the 2d branchial, there is a con- 

 spicuous dorsal fascicle of golden setae, largest on the 3d to 9th, 

 The two next segments appear to lack dorsal setae ; the next (last 

 thoracic) has a small group of recurved setae on the dorsal side- 

 The caudal region has five segments, besides the caudal, which is 

 semicircular, with about •2\ rounded marginal papillae. Rows of 

 uncini begin on the 4th post-branchial segment. 



Length, up to 95"^"^ ; diameter, 12-13"""'. 



The tube is regularly tapered and considerably^ bent ; it is com- 

 posed of rather large, nearl}^ uniform, rounded grains of calcareous 

 sand. This fine species was found at Cony Island and the 

 " Scaur," between tides, in shell-sand. Very local. 



