Syllis (Typosyllis) regulata carolinae 

 New Subspecies 



Figure 4a-f 



Holotype. — USNM 43146; five paratypes, 

 USNM 43147. 



Description. — Body 20 mm long, very slender 

 with rounded segments and long many-jointed 

 dorsal cirri. No color markings. Prostomium 

 (Figure 4a) broader than long with four small 

 eyes and elongate palps separated basally. 

 Median antenna much longer than laterals 

 and inserted between eyes. Pharynx extending 

 through 11 segments with a large anterior dorsal 

 tooth. Proventriculus with 32 rows of points 

 and extending through 5 or 6 segments. Dorsal 

 cirri alternating in length; longer ones of middle 

 segments (Figure 40 exceeding twice segmental 

 breadth and having about 40 joints, shorter 

 ones equalling segmental breadth and having 

 about 25 joints. Setigerous lobes long and 

 conical, ventral cirri slender and pointed. Com- 

 pound setae similar throughout, with long spi- 

 nules on cutting edge of blade and strongly 

 bidentate ends, the secondary tooth becoming 

 stronger than apical one in posterior feet (Figure 

 4c). Two simple setae in posterior feet; superior 

 one (Figure 4d) truncate or emarginate and 

 inferior one (Figure 4e) with a definitely bi- 

 dentate tip. 



Remarks. — Imajima (1966e) described Typo- 

 syllis regulata from Seto, Japan, and compared 

 it with Typosyllis trioicata Haswell from Aus- 

 tralia and ri/p(».s-7///(.s /(«*•// Berkeley and Berkeley 

 from Vancouver. All agree in having slender 

 bodies, long many-jointed dorsal cirri and 

 strongly bidentate compound setae, but differ 

 in the length of the proventriculus and details 

 of the acicula and posterior simple setae. Like 

 T. truncuta, the Carolinean specimens have 

 the proventriculus extending through five or 

 six segments, but they differ in having biden- 

 tate inferior simple setae and not pointed ones. 

 Like T. regulata the Carolinean specimens differ 

 from T. harti in having slightly knobbed acicula 

 (Figure 4b) and setae with a strong secondary 

 tooth and long serrations on the cutting edge 

 of the blade. The Carolinean specimens differ 

 from T. regulalu in having a shorter proventric- 

 ulus, which extends through 5-6 segments and 

 not 11 and in having superior simple .setae 



whose ends are truncate to bilobed instead of 

 pointed. These differences are small and do not 

 warrant more than subspecific rank. 



Records. — Off Beaufort in 20 m on shelly 

 sand (*). 



Syllis (Typosyllis) alternata Moore, 1908 



Typosyllis alteniata. - Imajima, 1966e: 273, Fig. 

 58 a-1. 



Records. — Common on corals in 18 m off 

 Beaufort (20). 



Distrihiitioii. — Alaska to California; Japan 

 and northwest Japan Sea; intertidal to 350 m. 



Syllis (Typosyllis) prolifera Krohn, 1852 



Syllis (Typosyllis) prolifera. - Fauvel, 1923: 261, 

 Fig. 97 a-g. - Day, 1967: 248, Fig. 12.3. g-i. 



Typo.^yllis prolifera. - Imajima, 1966e: 292, Fig. 

 65 a-n. 



Records. — On corals in 18 m off Beaufort (20). 



Distribution. — English Channel; Mediterran- 

 ean; Indo-west-Pacific from South Africa to 

 Japan; Brazil; intertidal to 30 m. 



Amblyosyllis formosa Claparede. 1863 



Pterosyllis f>n)!o.^a. - Fauvel, 1923: 280, Fig. 



105 h-m. 

 Amblyosyllis formosa. - Day, 1967: 259, Fig. 



12.6. m-p. 



Records. — On corals in 18 m off Beaufort (20). 



Distribution. — North Atlantic from Plymouth 



to Senegal; Mediterranean; intertidal to 30 m. 



Streptosyllis arenae 

 Webster and Benedict. 1884 



Streptosyllis arenae Webster and Benedict, 

 1884: 711, pi. 2: Fig. 17-21, pi. 3: Fig. 22, 

 23. - Pettibone, 1963a: 127, Fig. 31 1, m. 



Records. — Two specimens from 5 to 10 m 

 off Beaufort (*). 



Distribution. — Massachu.setts; intertidal. 



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