Notes on the Ecology and Reproduction of Trichocorixa Reticulata in a Jamaican Salt‐Water Pool

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Abstract
A population of the water boatman Trichocorixa reticulata (Guerin—Meneville) was studied in an isolated, small, shallow, highly saline pool in the mangrove area adjacent to Port Royal, Jamaica. Salinities were great at 43% 0/00, and the temperature of the water during the period of study ranged from 37.8° to 395°C. The boatmen were depositing large numbers of eggs on solid substrata. Despite the very high salinities, the hatching mechanisms were fully comparable to those occurring in the eggs of fresh—water Coleoptera. Eggs hatched equally well in water of 43 0/00 and 4.3 0/00 salinity, except that the process was more rapid in dilute meals. Eggs immersed in water with a salinity greater than 43 0/00 did not hatch until their medium was diluted.

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