it Eyespots paired and regularly arranged along radioles 



9' Eyespots irregularly scattered along radioles 



10 Abdominal segments with rows of minute uncini almost en- 



circling body. Thoracic notosetae all winged capillaries. 



[Radioles united by a web (Mij.ricola)] 



10' Abdominal segments with short compact rows of uncini. Thora- 

 cic notosetae include both winged capillaries and paleae . . . 



11 Radioles without lateral flanges and always separate. Abdomi- 



nal notosetae avicular, with broad tails 



11' Radioles flanged, .sometimes partly united. Abdominal noto- 

 setae quadrangular, without tails 



12 Radioles '■'> pairs, not united by web. (0)'i(ipf<is) 



12' Radioles 6-10 pairs, united by web for half their length or more 



{Clioiic): [Collar not notched ventrally. Tips of radioles 

 tapered. Juveniles with a caudal fllament] 



S. ni('l(u/(i!<tif/i)ia 

 S. inic)-<>phtli(ili)/(t 



No N.C. record 

 11 



J(t>ini'nicira hilo/xi Id 

 12 

 Oriiipsis sp. 



C. uniiricaiia 



Branchiomma nigromaciilata (Baird, lS6.'i) 



Biv iirhldiNDKi iiiijniniaciihitd. - Hartman, 1951: 

 114. - Day, 1967: 770, Fig. ;^7.4. m-p. 



Rtci,r(]s. — Off Beaufort, intertidal to 20 m ( 1:5). 



Dixtrihiitiitii. — North Carolina to the West In- 

 dies; Cape Verde Islands; South Africa; Red 

 Sea; tropical Indian Ocean; Japan; intertidal 

 to about 50 m. 



Hypsicomus pliaeofoenia (Schmarda. 1S61) 



PrutHlidcs elcyaiis Webster 1884: 325, i)l. 11: 



Fig. 63-74. 

 HijpxicoDiH^ titriiKdtiix. - Hartman, 1945: 47. 

 Hypsicdiiiiis (U <jdits. - Hartman, 1951: 115. 

 Hiipsicdiiids phdi iitd< itid. - Day, 1967: 761, 



Fig. 37.2. i-n. 



Rvnidrks. — Webster's original description and 

 figures of Prafiilide.s clcfpuis agree very closely 

 with specimens of Hijpsic()))ui>^ pliucotacin'd 

 from the Indian Ocean examined by me and with 

 the present specimen from Beaufort. The name 

 H. plidcotaoiid Schmarda has priority. Hartman 

 (1945) reported a specimen from Beaufort as 

 H. toi-qiidtus (Grube) and agreed with Augener 

 (1922) that P)-(itdUdf's clcf/diis Webster was a 

 synonym. Since I have not seen Gioibe's original 

 description I cannot comment on this synonymy 

 but I do not agree with Hartman (1951) that 



H. cii-nnuspiriciis Ehlers is a synonym of Pi'o- 

 tiilidcs I'hcjdHs Webster and thus a .synonym of 

 H. phatotaeiiia. Ehlers' description and figures 

 are very clear and the ventrally elongated collar 

 of his H. ci)rin}isperi<))s is quite different from 

 the short collar of H. phdintdi iiin. 



Ricdvds. — Cape Hatteras to South Carolina; 

 intertidal to 20 m (5, 11, 13, 15, 18, 20, *). 



Dif^trihdtio)!. — North Carolina to the West 

 Indies and the Gulf of Mexico; circumtropical; 

 intertidal to 30 m. 



Potamillo (Potamethus) spathifenis 

 (Ehlers. 1887) New Combination 



Pi}tdiiiix spdthif( )'ii.<. - Ehlers, 1887: 278, pi. 54: 

 Fig. 7-11, pi. 55: Fig. 1-4. 



D( xcriptiiiii. — Body very slender, up to 48 mm 

 long and encased in a sandy tube. No color 

 markings. Branchial lobes long and slanting, 

 each bearing a semicircle of six to nine separate, 

 elongated radioles ending in very long tapered 

 filaments. Collar with four lobes all projecting 

 forwards; paired ilorsal lobes smaller and 

 narrower; paired ventrolateral lobes slanting, 

 their ventral ends forming a sheath supjjorting 

 the branchial base. Thorax with eight .setigerous 

 segments. Notosetae of setigers 2-8 include 

 two or three winged capillaries and three to 

 five jialeae with oval blades and small tapered 

 ti]is. Neurosetae include a row of pickaxe setae 



125 



