Distribution. — Cosmopolitan in warm and 

 tropical seas; intertidal to 50 m. 



Dodecaceria corallii (Leidy, 1855) 



Figure 12a, b 



Naraganscta corallii Leidy, 1855: 494. - Miner, 



1950: 344. 

 Dodecaceria near coucliario)). - Hartman, 1951: 



94. 



Description. — Body dark green to black, 8-12 

 mm long, rounded anteriorly, rather flattened 

 posteriorly. Burrows common in encrusting 

 corallines or corals, e.g., Astraiic/ia dajiae. Pro- 

 stomium (Figure 12a) as an oval hood over- 

 hanging mouth; eyes indistinguishable. Peri- 

 stome long, annulated, fused to prostomium 

 anteriorly, and bearing a pair of cylindrical 

 gills and a pair of grooved palps posteriorly 

 at junction with setiger 1. Similar gill filaments 

 of decreasing length present above notosetae 

 of setigers 1-6 or 1-9; thus 7-10 pairs in all. 

 Segments short and without parapodial promi- 

 nences, the setae arising directly from body wall. 

 Anterior segments bearing only limbate capil- 

 laries with minutely serrated margins. First 

 hooks in neuropodium of setiger 8-12 and in 

 notopodium of setiger 10-13; middle segments 

 with hooks but few capillaries; posterior seg- 

 ments with hooks and more capillaries. Indi- 

 vidual hooks (Figure 12b) with slightly sigmoid 

 shafts and excavated ends preceded by a boss 

 thus resembling spoons with a luni]) before the 

 bowl. 



Re))iarks. — D. corallii differs from D. coii- 

 chaniDi Oersted in having more pairs of gills 

 and more pointed bowls to the spoon-shaped 

 hooks. 



Record.'i. — -Common in corals in 6.5-20 m off 

 Beaufort (20. *). 



Distribution. — Massachusetts to the Gulf of 

 Mexico in 0-20 m. 



Thary.x annitlnsiis Hartman. 196.i 



Thary.v ainiido.-ni.^ Hartman, 1965a: 167. pi. 34: 



Fig. a-e. 

 [?| Caulleriella ain/ultisa. - Banse and Hobson, 



1968: 31, Fig. 7 a. 



Remarks. — The specimens from North Caro- 



lina agree very well with Dr. Hartman's descrip- 

 tion. The acicular spines reported by Banse and 

 Hob.son (1968) were not seen and possibly belong 

 to a different species with many similar char- 

 acters. 



Records.— Of{ Beaufort in 80-200 m (21, *). 



Distribution. — New England to tropical South 

 America; South Africa; 80-4.540 m. 



Tharyx setigera Hartman, 1945 



Tliary.v setigera Hartman, 1945: 35, pi. 7: Fig. 

 i-3. 



Note. — T. setigera differs from T. niarioni in 

 possessing eyespots and in having fewer setae; 

 these may be juvenile characters. 



Records. — Cape Hatteras area to Beaufort, 

 intertidal (11. 15. 18). 



Distribution. — North Carolina; intertidal. 



Thary.x marioni (Saint-Joseph. 1894) 



Tharg.r marioni. - Fauvel, 1927: 100, Fig. 35 

 a-b. - Hartman, 1965a: 169. - Day. 1967: 

 505. Fig. 20.2. a-c. 



Rennn-ks. — Anterior fragments of T. marioni 

 are difficult to distinguish from those of Chaeto- 

 zo)ie setosa since the acicular setae of the latter 

 are not well differentiated from capillaries in 

 anterior segments. 



Records. — Off Beaufort in 18-80 m (20, *). 



Distrihntio)!. — Temperate North and South 

 Atlantic from the English Channel, eastern 

 Canada to North Carolina, northern South 

 America, South Africa; intertidal to 1,000 m. 



Caulleriella killariensis (Southern. 1914) 



Heterocirrns killuricnsis. - Fauvel, 1927; 97, 

 Fig. 34 d-h. 



Description. — Body threadlike, 8-12 mm long. 

 Prostomium conical and acutely pointed but 

 without eyes. Peristome faintly annulated. with 

 a i)air of long grooved palps at junction with 

 setiger 1. Filiform branchiae from setiger 1 to 

 near end of body: anterior branchial filaments 

 long, arising immediately above notosetae: pos- 

 terior filaments short, arising well above noto- 



82 



