

B ULLET1N 



ESSEZ INSTITUTE. 



Vol. 23. Salem: Jan., Feb., Mar., 1891. Nos. 1, 2, 3. 



AN AID TO A COLLECTOR OF 



THE CCELENTERATA AND ECHINODERMATA 



OF NEW ENGLAND. 



BY J. WALTKR FEWKES. 



I. Introduction. 



II. Kinds of Collecting. 



A. Shore Collecting. 



B. Dredging. 



C. Collecting- of "Surface" animals. 



a. Freeing the Net of its Collection. 



b. Collecting Surface Animals by Observation on the 



Water. 



c. Places for Collecting Surface Animals. 



III. Ccelenterata. 

 Ilydrozoa. 



Hydroida. 



1. Free-swimming Larva;. 



2. Attached Young. 



a. Athecata. 



b. Thecapliora. 

 Trachymedusae. 

 Siphonophora. 

 Acraspeda. 



Free-swimming Larva?. 



KSSEX INST. BULLETIN, VOL. XXIII. 1 d) 



