NOTICES OF NEW BOOKS. - 39 
into the stomach; the latter communicates directly with the 
body-cavity. Perhaps a better way of stating the facts would be 
to say that the esophagus opens into the general cavity of the 
body, which is imperfectly divided into chambers by the mesen- 
teries. The upper free edges of the mesenteries close round the 
included food, and digest it partly in the ordinary metazoon 
method, and partly by intracellular digestion, as in other 
Celenterata. It is only when the food is surrounded by the 
edges of the mesenteries that the animal can be said to have a 
“stomach,” for the remaining endoderm has not been proved to 
be digestive in function, and when digestion is not taking place 
the mesenteries are freely suspended in the general cavity of the 
body. 
Mr. Pennington has unfortunately ignored the British Asso- 
ciation Rules for Zoological Nomenclature, as the following will 
show. Throughout the Malacodermata he has followed Prof. 
Andres in making his families end in ine and his subfamilies end 
in ide, but, as he has followed Dr. Hincks, he happens to be 
correct in the Hydrozoa and Polyzoa. Priority in synonymy has 
not been adhered to throughout; the following will serve as 
examples :—Peachia (Gosse) takes precedence of Siphonactinia 
(Dan. & Kor.), and Flabellum areticum, Sars., should be F. 
laciniatum, M. Ed. & H. ‘ 
No mention is made of the following :—Hydrozoa—A llopora 
oculina, Khr., Stawrocoryne wortleyi, Rotch, Campanularia calceo- 
lifera, Hincks, Lafoéina tenuis, Sars. Actinozoa— “ Halecampa” 
microps, Gosse (one of the Hdwardside, probably an immature 
form), Halcampa fultoni, St. Wright (a parasitic anemone, also 
immature), Actinia cylindrica, Reid (= Peachia hastata, G.), 
Actinia (Heliactis) alba, Cocks, Sagartia (Thoe) pellucida, Cocks, 
T. alderi, Cocks, T. yarrellii, Cocks, T. bellii, Cocks, 7’. hastata, 
HE. P. Wright, Bunodes monile, Templ., Acthelmis intestinalis, 
Fabr., Polythoa rubicornis, Holdsw., P. anguicoma, Norm., Ceri- 
anthus vermicularis, Forbes, Ceratocyathus ornatus, Seguenza, 
Desmophyllum stokesii, M. Edw., D. crista galli, M. E. & J. Be 
Amphihelia profunda, Pourt., A. oculata, Linn., A. miocenica, Seg., 
A. atlantica, Dune., A. ornata, Dune., A. ramea, Balanophyllia 
socialis, Pourt., Pliobothrus symmetricus, Pourt. It is true that some 
of these corals are deep-water forms, but they are entitled to rank 
as British. The subfamily Cornularine has been omitted, viz., 
