208 Papers from the Department of Marine Biology. 
The colony at the southern end of the island (plate 8 ©) appears to 
be in equally healthy condition. We gathered 300 young specimens, 
some of which are figured on plate 5, upper figure, and 3 full-grown and 
3 nearly full-grown individuals which were born here (plate 3, top 
row). The young were planted in the small meadow a little to the 
northeast of the one in which the original colony of the ‘‘ King’s Road 
Type” cerions were planted (plate 8a). This new colony is on a ridge, 
in a scanty growth of Bahama grass, and the place is marked by a stake 
bearing a tag with the legend, ‘‘Cerions—Z.” 
The middle planting (plate 8 H), which consisted of 500 each of the 
“King’s Road” and ‘‘ White House” types, is not doing well. Part of 
the ground has been burned over and quite a number of the snails were 
destroyed. Most of the living individuals had taken to the fringe of 
bay cedars, and these do not appear to form a particularly suitable 
habitat. We cleaned the place up thoroughly, pulling up the cactus 
and cutting the grass, thus making an exhaustive search, which resulted 
in the recovery of 200 of the “‘White House Type” and 150 of the 
‘King’s Road Type” cerions, and a single tip. These were transferred 
into the second meadow northwest of the original south colony (plate 
81). This mixed colony is marked by a stake bearing a tag with the 
legend, ‘‘Cerions XX.”’ The ground here is covered by a quite regu- 
larly distributed growth of short grass. 
April 29, 1914.—We visited Boca Grande and examined the colony 
planted about the beacon. The grass here had been burned over and 
most of our specimens roasted. Quite a number of young, however, 
were present in the tufts of grass not consumed by fire, so this colony 
still promises to maintain itself. Three adults and one nearly grown 
(plate 3, the last four figures, bottom row) of the first generation were 
obtained and reserved for further study. 
The status of the various original plantings may therefore be briefly 
described as follows: 
King’s Road Type: Second Ragged Key north of Sands Key, good; Tea 
Table Key, probably extinct; Duck Key, undecided; New Found 
Harbor Key, almost extinct; Boca Grande Key, good; Garden Key, 
Tortugas, almost extinct; Loggerhead Key, Tortugas (plate 8 &), very 
good. 
White House Type: First Ragged Key north of Sands Key, good; Indian 
Key, very poor; Bahia Honda, very good; Loggerhead Key, Tortugas 
(plate 7.4), very good. 
Mized lot: Loggerhead Key, Tortugas (Plate 8), as yet poor. 
