Leanira hystricis Ehlers. 1874 



Lnniird li i/sti-icis. - Fauvel, 1928: 118. Fig. 

 4.S h-m. - Pettibone. 1970a: 8. Fig. 4. 



D>i<cripti(ni. — Median antenna short and with- 

 out ctenidia. Lateral antennae indistinct, prob- 

 ably fused to bases of tentacular segment. No 

 eyes. Palps long with basal sheaths. A cirro- 

 phore but no dorsal cirrus on segment ?>. Elytra 

 without surface papillae, marginal fringes, or 

 lateral indentations. Cirriform branchiae from 

 segment 7 onwards. Notopodia with two long 

 a])ical stylodes. Neuropodia with five long sty- 

 lode.s, two arising from posteroventral bract. 

 No sim])le pectinate setae in neuro])odia, all 

 neurosetae being compound with si)inigerous 

 laddered blades. 



Rcmarkx. — Pettibone (1963a) and earlier 

 workers recorded Lfaiiira hjistricis from Massa- 

 chusetts to north of Puerto Rico. Pettibone 

 (1970a) has revised the .synonymy of L. hys- 

 triris and several other species and states that 

 the record from Massachusetts refers to L. 

 rohin^ta Verrill and the record from north of 

 Puerto Rico refers to L. cirmUt (Treadwell). 

 As noted above, the present specimens lack 

 simple neuro.setae which agrees with Pettibone's 

 revised description of L. lu/stricis and dis- 

 tinguishes it from both L. )'()bHsta and L. cirrata. 

 On the other hand, it should be noted that the 

 presence or absence of labial lobes which Petti- 

 bone now regards as an important diagnostic 

 character was not recorded. 



Ricorch. — Seven specimens from 200 m off 

 Beaufort (*). 



Dist)-il)H t i(i)i. — (According to Pettibone, 

 1970a) northeastern Atlantic; Iceland, United 

 Kingdom, Azores; 957-2,640 m. 



Psanimolyce ctenidophora New Species 



Figure Im-t 



H(./o/;/;;(.— USNM 43117. 



Description. — Body incomplete with only 28 

 segments measuring 25 mm by 8 mm. Dorsum 

 covered with coarse sand or shell fragments 

 attached to elytra and mid-dorsum by branch- 

 ing adhesive papillae (Figure Im). Ventrum and 

 parapodial bases densely covered with segmental 



bands of long slender papillae alternating with 

 narrower bands of small hemispherical papillae. 



Prostomium (F"ignre Im) rounded but sunken 

 between anterior parapodia and dominated by 

 the large swollen ceratophore of median an- 

 tenna. Base of ceratophore with a pair of small 

 ctenidial tlaps; ceratostyle missing. Anterior 

 pair of eyes much larger than posterior pair 

 and directed forwards. Lateral antennae as bi- 

 articulate conical projections arising from dor- 

 sal bases of tentacular lobes and not visibly 

 joined to prostomium. Tentacular lobes fused 

 basal ly below ceratophore of median antenna 

 and each bearing two tufts of slender, serrated 

 capillary setae protected on medial side by 

 cephalic sheaths. Dorsal tentacular cirri slightly 

 longer than ventral ones. A large pedunculate 

 facial tubercle above mouth and large prebuccal 

 flanges on either side; palps missing. 



Elytra on setigers 2, 4, 5, 7, 9 . . . 27, and 28 

 (broken end) and dorsal tubercles on intervening 

 segments from setiger 3 onwards. First pair of 

 elytra (F^igure In) large, oval, without an inci- 

 sion and covering head. Subsequent elytra small- 

 er and widely separated leaving dorsum bare 

 apart from sanil grains. Second pair of elytra 

 (Figure 10) triangular and without lappets but 

 subsequent elytra (Figure Ip) somewhat pro- 

 duced medially and with small lappets on pos- 

 terior margin. E.xposed surfaces of all elytra 

 covered with long papillae and adherent sand 

 grains or shell fragments. 



Parapodia (Figure It) similar throughout; 

 those of setigers 2 and .'5 without specialized 

 features. Each notopodium short and stout with 

 a i)resetal flap dorsally. Neuropodium larger, 

 with scattered squat ])aiiillae and groups of long 

 filiform papillae; three groups around neuro- 

 setae and fourth group at base of ventral cirrus. 

 Notosetae slender and minutely serrated, many 

 directed downwards between parapodia. Neuro- 

 setae of three types; a superior group of stout 

 falcigers with well serrated shaft-heads (Figure 

 Iq) and small blades with an indication of a 

 secondary tooth; a middle group of stout falci- 

 gers with almost smooth shaft-heads (Figure 

 Ir); an inferior group of slender falcigers with 

 serrated shaft-heads and long bidentate blades 

 (Figure Is). 



Remarks. — Species of the genus Psa)>u)!olyce 

 have been distinguished mainly on the shape of 

 the elytra, some of which are incised while 



11 



