600 
ZOOLOGICAL LITERATURE. 
New species and genera : — 
^ Ehlers gives lengthened descriptions of the following (all 
from Quarnero) : — 
Amphinomea. — EupJirosyne racemosa. 
Oheysopetalea. — Chrysopetalum fragile, 
Aphboditea. — Polyno'e spinifera j P. peUucida j Sigalion limicola. 
Phyllodocea. — Phyllodoce vittata j P. lugens j Eidalia virens j E. valuer is j 
E. obtecta ; Eteone pterophora. 
Hesionea. — Orseis pulla 'y Podarke alhocincta'j P. viridescens \ P.agilis) 
Pet'iboea longicirrata. 
Syllidea. — -Syllis fumensis] S. krohnii) S. pellucida\ S. sexoculata) S, 
scabra'y (248-60) ? j Sphcerosyllis claparedii ; Procercea picta) Eury syllis 
tuberculata. 
His new genera are thus defined : — 
Chysopetalum. Characters of the family. Body short, nearly as hroad, 
with few segments ; parapodium with one setigerous tuft j prestomium with 
three tactile appendages and two palpi j peristomium with four tactile cirri 
on either side. 
In addition to his own C. fragile y Ehlers thinks Palmyra debilis (Grube) 
may also belong to this genus. 
Orseis (Hesionea). Body compact, with very distinct segments j prestomium 
with five tactile cirri j peristomium with two tactile cirri on either side j 
parapodium unbranched, its dorsal and ventral cirri united ; posterior segment 
with lateral processes and terminal anal cirri ; anterior extremity of everted 
proboscis with a circlet of pointed papilli©. 
Podarke (ibid.). Body compact, most of its segments marked with trans- 
verse bands ; prestomium with five tactile cirri ; f rst three segments without 
setigerous parapodia, hut with tactile cirri j parapodium of each succeeding 
segment large, single, or with a second, superior, tubercular process ; setce (of 
the parapodium proper) compound, with pointed, knife-shaped appendages, 
those of the upper process simple, capillary j dorsal cirrus with basal joint, 
otherwise undivided ; ventral cirrus always much shorter j posterior segment 
with lateral appendages and anal cirri or papillae \ proboscis destitute of papillae. 
Peribo'ea (ibid.). Prestomium with two filiform tactile cirri and a pair of 
longer and thicker tri-articulate palpi arising from its under surface ; peri- 
stomium with three, second and third segments each with two pairs of 
cirri; parapodium very large, undivided, with pointed lips; setce com- 
pound ; dorsal cirrus very long, ventral cirrus shorter ; posterior segment with 
anal cirri ; anterior extremity of proboscis with a circlet of filiform papillae. 
Proeereea. Distinguished from other Syllidea without palpi by the long 
cirri which arise from its first three segments and from these only. 
EurysyUis may he known by the complete absence of these long cirri. 
Five other critical genera of Syllidea are established by 
Ehlers, viz : — 
Procome. Palpi ; pei'istomium without setae, but with more than two 
pairs of tactile cirri. Sp. Syllis polycera (Schmarda). 
Exotokas, As Procomcy but peristomium with only a single pair of tactile 
