FISHES OF THE CONNECTICUT LAKES. 73 



A. Depth, 80 feet; was selected as tyi)ical of the open body of the lake, aud 

 always accessible. 



B. Depth, 90 feet ; near the influence of rocks. 



C. Depth, SO feet; was in touch with the shallow and warm water of the 

 outlet. 



D. Depth, 140 feet ; was located in the deepest part of the lake. 



E. Depth, 100 feet; was chosen to secure the plankton characteristic of the 

 large and quiet body of water lying in South Bay. 



F. Depth, 30 feet; was in the environment of a sandy shore, and to secure 

 such plankton as the Main Inlet might be pouring into the lake. 



Plankton was also taken from time to time from 21 special locali- 

 ties, indicated by Roman nnmerals on the map, distributed and char- 

 acterized as follows: 



I. The shallow marshy area at the mouth of Mud Pond Brook, characterized 

 by Sagittaria latifolia and »§. graminca. 



II. At the mouth of shallow pool on north shore, which was fed by springs, 

 and characterized by MyriophyUum farweUii, Utriculana vulgaris, and Sagit- 

 taria latifolia, to determine what plankton was supplied from this source. 



III. Mouth of Round Pond Brook. 



IV. Lower reach of Main Inlet. Vegetation of Potamogeton anipUfoJius, P. 

 nuttallii, Sparganiuni simplex angustifnlium, Elcocharis acicularis, Nymphwa 

 advcna, and isl. hybrida. 



V. Immediately off the mouth of Main Inlet. 

 ^'I. Surface tow of open lake. 



VII. Surface tow of open lake. 



VIII. Surface tow in West Bay. 



IX. Thirty feet of water, near shallow cove of West Bay. 



X. Shallow cove of West Bay, characterized by Myriophyllam alterniflorunt 

 and Nympha^a advena. 



XI. Near outlet, over 30 feet of water. 



XII. Protected waters of South Bay, 1.5 feet deep, among Potamogeton 

 pusilliis, P. spiriUus, and Myrioptiylluin alterniflorum. 



XIII. Pi'otected waters of South Bay, 15 feet deep, characterized by 

 MyriophyUum alterniflorum. 



XIV. Protected water of East Bay, sparse growth of Chani eoroiiata. 

 XlVa. Wave pool on east shore. 



XV. Water of Round Pond Brook before entering First Lake. 



XVI. Dead water of Main Inlet above the lake before it enters the region 

 of vegetation. 



XVII. Rapid water of the Main Inlet. 



XVIII. Water of Alder Brook. 



XIX. Water of lake off Alder Brook. 



XX. Bed of Potamogeton nuttallii in West Bay. 



XXI. Bed of Potamogeton nuttallii and P. pusiUus in South Bay. 

 Second Lake: 



(a) In East Cove, depth 15 feet, among Chara eoronata, Potamogeton ampli- 

 foUus, P. prcelongus, P. splrillus, Nyniplicra advena, N. hybrida, MyriophyUum 

 spicatum. 



(6) In rapid water of inlet. 



(c) Still water of inlet in beds of Chara eoronata, Potamogeton amplifolius, 

 P. nuttallii, Batrachium trichophyllmn. 



