ANNELIDA. 
Verm. 31 
Microspio , n. g., for Spio mecznihowianus, Clp., and Spio atlanticm , Lnghs.; 
Mesnil, Bull. Sci. France Belgique, pp. 119 & 174. 
Mysta siplionodonta , Gr., diagnosis of species; Gravier, p. 311. 
Nereis dumerilii , Aud. & Edw., cephalic lobe and encephalon ; Racovitza, 
p. 217. 
Nerine : diagnosis of genus, p. 119, and of its 5 contained species, p. 171, 
including N. bonnieri, n. sp., Wimereux, p. 168 ; N. cirratulus , p. 152, 
external anatomy, development and synonymy ; and N. foliosa , 
p. 165, external anatomy and synonymy ; Mesnil. 
( N . ( Malacoceras ) lo7igirostri$, Qfg.) non St.-J. = N. cirratulus , p. 164, 
Wimereux ; Mesnil, Bull. Sci. France Belgique, xxix. 
Nerinides , n. g. for (“ Nerine longirostris , Qfg.” of St.-J.), diagnosis of 
genus, p. 119 ; Mesnil l. c. p. 152. 
Oriopsis , n. g. of Serpulid (with only 5 thoracic and 4 abdominal seg- 
ments) ; for 0. metschnikowi , n. sp., in empty Sgnrorbis tube, near 
S. Yaast la Hogue ; Mesnil & Caullery, Zool. Anz. xix, p. 483. 
Paraonis tenera , Gr., probably a Spionides ; Mesnil l. c. p. 120. 
( Periptyches , Gr.) : genus referred to Prionospio ; Mesnil, l. c. p. 121. 
Petaloproctus spatulus , Gr., cephalic lobe and encephalon ; Racovitza, 
p. 232. 
Phyllocheetopterus ( fallax , Clp.) = P. socialis , Clp. ; Roule, Ann. TJniv. 
Lyon, xxvi, p. 458. 
Pliyllodoce teres , Mlmgr., on French coast; Gravier, p. 308. 
Poly dor a : characters of genus, pp. 119 & 230 : table for distinguishing 
the species, p. 236 ; P. langerhansi , n. sp., p. 202, for (P. ciliata , var. 
ininuta, Lnghns) ; P. Jlava , Clp., p. 180, external and internal 
anatomy, larva, synonymy; P. coeca, Oerst., p. 191; P. socialis , 
Schm., p. 193, external anatomy and synonymy ; P. giardi , M6sn., 
p. 195, external and internal anatomy and larva ; P. armata , Lnghns., 
p. 203, P. ciliata Johnst., p. 210, external anatomy, larva, and 
synonymy; Mesnil (1). P.qiardi, M6sn., inhabited by a parasitic 
Copepod ; Giard (1) & (2). 
Polyophthalmus ; critical revision of the Mediterranean species, concluding 
that there is really only 1 species varying very much in its colour 
markings; (P. ehrenbergi, Qfg.), ( P.pallidus , Clp.), and (P.dubius, Qfg.), 
are therefore all referred to P. pictus , Duj. ; Monticelli, Boll. 
Soc. Napoli, x, p. 35, and ix, p. 86. 
Fterocirrus as a host for an Orthonectid ; Saint- Joseph. 
Pygopliyllum , Schm., not a Spionid ; Mesnil (1) p. 122. 
Pygospio: diagnosis of genus, p. 119 ; P. elegans , Clp., var. minuta } 
Giard, external anatomy, larvoe, abnormalities in segmentation, and 
synonymy; Mesnil (1) p. 175. 
Clapar&des’ “ larva of Pygospio ciliata ” probably that of: Polydora 
( Carazzia ) automata ; ib. p. 182. 
Sabella pavonina , var. abyssorum , n. var.; Roule, Ann. Univ. Lyon, xxvi, 
p. 461. 
Scolelepis , Bl. (Mgrn.) : diagnosis of genus, p. 120, S. fuliginosa , Clp., 
p. 132, S. ciliata , Kef., p. 138, S. girardi , Qfg., external morphology 
and synonymy, and a larva which ? that of S. girardi , p. 149 ; 
Mesnil (1). 
f Serpula sp. ?, Tertiaries of Aosta ; Douxami. 
( Sosane ): genus referred to Amphicteis ; Fauvel, Bull. Soc. Normand. 
Spinther mineaceus, Gr., cephalic lobe and encephalon, p. 197 ; its affinities 
to the Amphinomidce , p. 206 ; Racovitza. 
Spionidcc : external morphology ; Mesnil, Bull. Sci. France Belgique, 
xxix. 
Spio : diagnosis of genus, p. 118, enumeration of species, p. 129, including 
martinensis , n. sp., St. Martin’s Bay, p. 122, Mesnil, l. c. 
1896. [vol. xxxiii.] f 3 
