Vol. 82, pp. 519-524 17 November 196Q 
PROCEEDINGS 
OF THE 
BIOLOGICAL SOCIETY OF WASHINGTON 
AUSTRALAUGENERIA POTTSI, NEW NAME FOR 
POLYNOE LONGICIRRUS POTTS, FROM THE MALDIVE 
ISLANDS (POLYCHAETA: POLYNOIDAE) 
BY MABIAN H. PETTIBONE 
Smithsonian Institution, Washington, D.C. 
The original description of the polynoid polychaete Polynoe 
longicirrus Potts, 1910, was based on material collected by Mr. 
J. Stanley Gardiner in 1899 from four localities in the Mal- 
dive Islands: South Male, North Male {" off a Gorgonian"), 
South N?andu, and Fadifolu. Syntypes from one of these lo- 
calities, that of South Nilandu, are now deposited in the British 
Museum (Natural History), having been transferred from the 
Cambridge Museum. As pointed out by Augener ( 1922, p. 10, 
footnote) and Hartman (1959, pp. 103, 108, Catalogue), 
Polynoe longicirrus Potts, 1910, is a junior homonym of Polynoe 
(Lepidonotus) hngicirra Schmarda, 1861. In my recent paper 
on "A review of some species referred to Scalisetosus Mclntosh" 
(Pettibone, 1969, p. 25), I indicated that Potts' Polynoe longicir- 
rus might prove to belong to Australaugeneria Pettibone and 
that the type-specimens needed to be re-examined, Such re- 
examination has now confirmed my earlier supposition and 
Potts' species is herein given a new name and re-described. 
I wish to thank David George of the British Museum (Nat- 
ural History) (BMNH) for the loan of the type-specimens and 
Fenner A. Chace, Jr., of the Smithsonian Institution for criti- 
cally reading the manuscript. This study was aided in part by 
a grant from the National Science Foimdation (NSF GB-12e9). 
FAMILY POLYNOIDAE MALMGREN 
Genus Australaugeneria Pettibone, 1969; emended 
Type-species: Polynoe rutilans Grube, 1878, by original designation. 
Emended diagnosis;   Buccal segment  (II)  without notosetae  (type- 
44_PRC>C. BIOL. SOC. WASH., VOL. 82, 1969 (519) 
520 Proceedings of the Biological Society of Washin^on 
FiGUKE 1. Austfa?augerieria pottsi n. name (Syntypes of Polynoe Icmgi- 
citrus Potts, BMNH 1^4: 3: 77): a, Dorsal view anterior end, tip of 
antenna broken, upper tentacular cini and first pair elytra missing; b, 
elytrigeious parapodium from segment II, anterior view; c, neurosetae 
from same; d, cirrigerous parapodium from segment III, posterior view; 
e, elytrigerous parapodimn from segment IV, anterior view; f, noloseta 
from same and tip magnified; g, upper neumseta from same; h, middle 
and lower neurosetae from same. 
New name for Polynoe longicirrus 521 
species ) or notosetae few in number. Presetal neuiopodial lobes of seg- 
ments II and ni enlarged, hoodlike (type-species) or only slightly en- 
larged. 
Aitslralaugeneria pottsi new name 
Figs. 1-3 
Fo?ynoe longicimts Potts, 1910, p. 336, pi. 18, fig. 9, pi. 20, fig. 29, pL 21, 
figs. 37, 38.?Augener, 1922, p. 10 (footnote). Not Polyvoe (Lepi- 
dotwtus) hngicirra Schmarda, 1861. 
Scdisetosus longicirrus (Potts).?Hartman, 1959, p. 108. [HOMONYM.] 
Material examined: South Nilandu, Maldive Islands, Indian ocean, 
J, S. Gardiner collection?3 syntypes of Folynoe longicimts Potts ( BMNH 
1924: 3: 77). [Three anterior fragments of 12, 16 and 20 segments; pos- 
terior fragment of 9 segments; and 6 middle fragments.] 
Description: Body small, flattened, tapered gradually posteriorly. 
Length 6.5-7.5 mm, width, including setae, 2 mm, segments 37-38. Ely- 
tra 15 pairs, arranged on segments 2, 4, 5, 7, alternate segments to 23, 26, 
29, and 32. Elytra large, covering dorsmn, soft, translucent, smooth, 
without tubercles or papillae. Prostomium bilobed, with lobes rounded 
anteriorly, without distinct cephalic peaks; ceratophore of median antenna 
in anterior notch, with style long and tapered; lateral antenna with dis- 
tinct ceratophores, inserted ventrally, with styles very short; ventral palps 
short, stout, tapered; no eyes visible (Hg. la). Tentacular parapodia (I) 
achaetous, with 2 pairs long tentacular cirri. Buccal segment (II) with 
ventral buccal ciiri slightly longer than following ventral cirri; without 
nuchal fold; notopodia small, each with 2 short notosetae; neurosetae 
hooked; presetal neuropodial lobe longer than postsetal lobe but not es- 
pecially enlarged (fig. la-c). Neurosetae of segments 3 and 4 also more 
strongly hooked than following neurosetae (fig. Id-h). Parapodia sub- 
biramous (figs. 2a, b, 3a, b). Notopodia small, conical, confined to 
middle trf neuropodial lobe; notosetae few in number (2-7), short, more 
slender than stouter type of neurosetae, slightly curved, with serrated 
border and blunt, slightly bidentate tips (figs. If, 2c, 3c). Neuropodia 
elongate, diagonally truncate distally, deeply notched dorsally and ven- 
trally, forming anterior and posterior roimded lobes, former slightly 
longer than latter. Neurosetae of 2 types: upper few (2-5), slender, 
bent, spinous, with tips blunt (figs. Ig, 2d, 3d); middle and lower neuro- 
setae slightly more numerous (6-8), stout, wider subdistaUy, smooth or 
faintly spinous on enlarged part, with slightly hooked tips (figs. 2e, 
3e). Dorsal cirri with elongate cylindrical cirrophores and long filamen- 
tous styles (figs. Id, 2a, 3a). Dorsal tubercles inconspicuous. Ventral cirri 
short, subulate, extending slightly beyond neuropodial lobes. Two dorsal 
transverse cihated bands per segment. 
Distribution: Indian Ocean ( Maldives ). May be found on gorgonians 
(Potts, 1910). 
Remarks: A. pottsi differs from the two previously described si)ecies of 
Austrdaugeneria from the Philippine Islands and southwest Australia, A. 
522 Proceedings of the Biological Society of Washington 
FIGURE 2. Austmlaugeneria pattsi n, name ( Syntypes of Polynae longi- 
cimts Potts, BMNH 1924: 3; 77): a. Middle dmgerous parapodium, 
posterior view; b, middle elytrigerous parapodium, anterior view; c, 
notosetae from same and tip magnified; d, upper neuroseta from same; e, 
middle and lower neurosetae from same. 
New name for Polynoe longicirrus 523 
FiGDBE 3. Australaugeneria pottsi n. name (Syntypes of Polynoe longi- 
cirrus Potts, BMNH 1924: 3: 77): a, Posterior cirrigerous parapodium, 
posterior view; b, posterior elytrigerous parapodium, anterior view; c, 
notoseta from same and tip magnified; d, upper neurosetae from same 
and tip magnified; e, middle and lower neurosetae from same. 
Tutilans (Grube, 1878) and A. michaelseni Pettibone, 1969, in that the 
parapodia of segments II and III are less modified, i.e., the presetal 
neuropodial lobes are not especially enlarged or hoodUke, the neurosetae 
are not as strongly hooked, and two notosetae are present in segment II 
and not absent, as in the other two species. A. pottsi agrees more closely 
with A. ruiilans in having the notosetae more slender than the stoutest 
neurosetae, curved, vrith spinous rows and bifid tips, and not smooth, 
stout, spikelike, as in A. michaelseni. The notopodia are short and con- 
fined to the middle of the neuropodial lobes in A. pottsi and A. rutilons 
and not extending to near the distal tips of the neuropodia, as in A. 
michaelseni. 
In her Catalogue of the Polychaeta of the World, Hartman ( 1959, p. 
108) referred Polynoe longicirrus Potts, 1910, to Scalisetosus, perhaps 
following a suggestion by Augener (1922, p. 10, footnote) that it might 
be a Scalisetosus-hke form. As indicated by Pettibone (1969), it does 
not agree with Scalisetosus Mclntosh. 
524 Proceedings of the Biologicxil Society of Washington 
LrrERATDHE CITED 
AuGENER, H. 1922. Revision der australischen Polychaeten-Typen von 
Kinberg. Ark. Zool. Stockholm, 14(8):   1^2, 10 figs. 
GRUBE, E. 1878. Annulata Semperiana. M?m. Acad. Imp. Sei. St. P?ters- 
bourg, (7), 25 (8) : 1-300.15 pis. 
HARTMAN, O. 1959. Catalogue of the Polychaetous annelids of the 
World. Allan Hancodc Found. Publ. Occas. Paper, No. 23: 
1-628. 
pKrrmoNE, M. H. 1969. Review of some species referred to Scatisefosus 
Mdntosh (Polychaeta, Polynoidae). Proc. Biol. Soc. Wash- 
ington, 82: 1-30, 12 figs. 
POTTS, F. A. 1910. Polychaeta of ?he Indian Ocean. Pt. 2. The Palmy- 
ridae, Aphroditidae, Polynoidae, Acoetidae and Sigalionidae. 
Trans. Unn. Soc. Zool., ser. 2, 16: 325-353, pis. 18-21. 
ScHMABDA, L. K. 1861. Neue wirbellose Thiere beobachtet und gesam- 
melt auf einer Reise um dei Erde 1853 bis 1857. Lepizig, vol. 
1. Turbellarien, Rotatorien und Anneliden. Pt. 2, 1-164, 22 
plates, 100 figs.