676 
BULLETIN of the bureau of fisheries. 
Veri-ill and Smith (1873, p. 540, 543) also list for local waters a larva which they refer to the genus 
Eristalis, “found in Vineyard Sound, among algae in April”; and another listed as “Molanna, species 
undetermined, ” which was “found in a . . . tube . . . attached to the piles of a wharf , below high- 
water mark, at Menemsha Bight.” 
The following is a list of the species of insects taken by Mr. E- D. Congdon in brackish water at Great 
Pond and Tashmoo Pond, July and August, 1907. While these insects are not strictly marine in their 
habitat, it seems worth while to include this list in the present work. The species were identified by 
Messrs. Banks, Clemons, Currie, Heidemann, and Schwartz, of the United States National Museum. 
Neurop,te;ra. 
Limnophilidx sp., larva. Tashmoo, Great Pond. 
Odonata. 
JEschna sp., larva. Great Pond. 
Anax junius (Drury), larva. Tashmoo. 
Sympetrum sp., larva. Great Pond. 
HrmipTERA. 
Corixa burmeisterii Fieber. Tashmoo. 
Corixa harrissii Uhler. Great Pond. 
Gerris mdrginatus Say. Tashmoo. 
Mesovelia sp. (probably M. bisignata Uhler), nymph. 
Tashmoo. 
Notonecta undulata Say. Tashmoo, Great Pond. 
COLEOPTERA. 
Acilius fraternus Harris. Great Pond. 
Berosus peregrinus Herbst. Tashmoo. 
Class AR. 
Chernes oblongus Say. 
Verrill and Smith, 1873, p. 544, 331. 
“Under stones near low- water mark at Woods 
Hole . . . several specimens were found to- 
Bidessus discretus Sharp. Tashmoo. 
Cnemidotus muticus Leconte. Great Pond. 
Gyrinus sp., larvae. Tashmoo, Great Pond. 
Haliplus ruficollis De Geer. Tashmoo, Great 
Pond . 
Hydroporns sp., larvae. Tashmoo. 
Laccophilus niaculosus Germar. Great Pond. 
Philhydrus perplexus Leconte. Tashmoo. 
Tropisternus glaber Herbst. Great Pond. 
Tropisternus nimbatus Say. Great Pond. 
Tropisternus sp., larvae and egg cases. Tashmoo, 
Great Pond. 
Diptera. 
Ceratopogon sp., pupa. Tashmoo. 
Chironomus sp., larvae. Tashmoo, Great Pond. 
Cm licidcB sp., larva. Tashmoo. 
Odontomya sp., larva. Tashmoo. 
Tabanus sp., larva. Great Pond. 
Tetanocera sp., larva. Tashmoo. 
CHNIDA. 
Chernes oblongus — Continued. 
gether. ” — Verrill and Smith. Juniper (But- 
lers) Point.— W. M. Wheeler, in Marine Bio- 
logical Laboratory card catalogue. 
XIPHOSURA. 
Limulus polyphemus (Linnaeus). 
. Verrill and Smith, 1873, p. 580, 340; Bumpus, 
1898; 1898a; 1898b. 
Common locally wherever physical conditions are 
favorable, e. g. , in Woods Hole Harbor, Katama 
Bay, Vineyard Haven, Menemsha Bight, West 
Falmouth Harbor. This animal frequents 
muddy and sandy shores and mud flats, below 
low-water mark, often burrowing a short dis- 
tance below the surface. Occasionally 
dredged by the Survey, even at a depth of sev- 
eral fathoms; in one case recorded from i2j^ 
fathoms, though it it is not certain that this 
was a living specimen. 
Fish Hawk stations: 7633 (1 living), 7779, 7780 
(2 large). 
Phalarope stations: 138 (1 dead), 140 (1 dead), 
I5i- 
Limulus polyphemus — Continued. 
Limulus disappears through the winter, reap- 
pearing in the spring. Bumpus reports the 
taking of one at Waquoit as early as March 25 
(1898); and Mr. Edwards reports that they 
first appeared in Narragansett Bay, at about 
the same day of the month in 1909. They 
begin to spawn in May, at which time they 
come to shore in great numbers, and are easily 
taken. A limited area at the head of Great 
Harbor has for years been a much frequented 
breeding ground. The spawning season seems 
to continue actively throughout part of June; 
and I. A. Field has observed paired individ- 
uals at Menemsha Bight as late as July 17. The 
eggs are deposited in the sand, a short distance 
below the surface. Young from one-half inch 
to 2 or 3 inches long are found during the mid- 
dle of August, and small tests are sometimes 
exceedingly abundant on the beaches. 
