"^'iSi!^,i:t" ^MMm in the Uni.

CHiETOPODA. 477
either separated or hermaphrodite, and by the periodic substitution of surfaceswimming
for areniculous adults.
In pointing out the existence of a simple system of vessels in a species of
Polynoe, which genus he showed in his former work to be, as a rule,
anangian, M. Claparede refers to a work on the histology of Hermione hystrix
as nearly ready for publication. His death (the greatest loss zoology has
suffered for many years) will not, it is believed, prevent its publication.
2. Professor GRITBE took an opportunity last year of spending some
weeks in examining the fine collection of Annelids in the Museum of Natural
History at Paris, now arranged in agreement with the work of Professor
De Quatrefages (Histoire des Annexes). He revises many of that author's
genera and species, pointing out some which are synonyms, and describing
others in greater detail. The foUowing is a list of the Annelids referred to
hy Professor Grube :—
Genera: Blainvillea, Qf.; Notocirrus, Schmd.; Plioceras, Qf.; PoHelia, Qf.;
Bhytoeephalus, Qf.; Uncinochata, Qf.; Gymnosoma, Qf. ; Loxisiphon, Dies.
Polynoe, Sav.: lavis, Aud. et Edw.; fioccosa, Sav.; foliosa, Sav.; nuda, Qf.
Eunice, Cuv.: tentaculata, Val.; botta, Qf.; pelamidis, Qf. ; terrquata, Qf.;
laurillardi, Qf.; harassii, Aud. et Edw.; australis, Qf.; rissoi, Val.; heterochata,
Qf.; ebranchiata, Qf.; scombrinis, Val.; gigantea, Cuv.; rousseai, Qf.
Marphysa, Sav.: sanguinea (Mont.) ; hamasoma, Qf.; peruviana, Qf.;
gayii, Qf.
Lysidice, Sav.: torquata, Qf.
Blainvillea, Qf.: filium, Qf.; elonyata, Qf.
Lumbriconereis, Bl.: latreillii, Aud. et Edw.; maeulata, Qf.
Euphrosyne, Sav. : foliosa, Aud. et Edw.
Nereis, L.: marionii, Aud. et Edw.; crassipes, Qf.; bilineata, Johnst., Qf.;
fulva, Bl, Qf.; ventilabrum, d. Ch., Qf.; viridis, Johnst., Qf.; fucata, Sav.;
regia, Qf.; edenticulata, Qf.; nubila, Sav.; pelagica, L.; bowerbanckii, Qf.;
dumerilii, Aud. et Edw.; pulsatoria, Sav., Qf.; microcera, Qf.; sarsii, Rathke;
yankiana, Qf.; heterochata, Qf.
Heteronereis, (Ersd.: schmarda, Qf.
Lycastis, Sav., Aud. et Edw.: brevicornis, Aud. et Edw.
Nephthys, Cuv.: dussimieri, Qf.; bononiensis, Qf.; margaritacea, Johnst.
Glycera, Sav.: peruviana, Qf.
Hemipodius, Qf.: roseus, Qf.
Scoloplos, Bl.: elongatus, Qf.
Petaloproctus, Qf.: terricola, Qf.
Clymene, Sav.: lumbricoides, Edw.; zostericola, Qf.; uranthus, Sav.
Johnstonia, Qf.: clymenoides, Qf.
Pectinaria, Lam.: crassa, Gr.
Terebella, L., Qf.: emmalina, Qf.; gigantea, Mont.; elongata, Qf.; modesta,
Qf.; pectoralis, Qf.; conchilega, Qf.; prudens, Cuv.; abbreviata, Qf.
Phenacia, Qf.: setosa, Qf.; terebelloides, Qf.
Heterophenacia, Qf.: gigantea, Qf.
Heterophyzelia, Qf.: bosci, Qf.
Idalia, Sav.: vermiculus, Qf.
Dtstylia, Qf. : volutacornis (Mont.) ; punctata, Qf. ; josephina (Riss.).
Spirographis, Viv.: spallanzanii, Viv.; longispira, Qf.; elegans, Qf.; &>-m'-
,9pir«, Qf.