7 o 
BULLETIN OF THE BUREAU OF FISHERIES. 
although the specimen is larger. In 5 . japonicum the larger specimens have the calcified portions 
comparatively more reduced than the smaller ones. The internal organs closely resemble 5 . japonicum 
except that the terminal appendages are quite unlike. 5 . molliculum has also much in common with 
5 . curiosum Hoek, from the Malay Archipelago; but that barnacle has the carina less arched, with the 
umbo farther from the apex, the scales of the peduncle are far larger, the shape of the carinal latus 
differs, and there is a small rostrum. Scalpellum subflavum Annandale is also related, but it has 
far larger scales on the peduncle, a more broadly triangular tergum, etc. Only one specimen of 
i>. molliculum was taken. 
Family LEPAD1D7E. 
Genus LEPAS. 
Lepas anserifera LinnG 
Locality: Albatross station 4920, near Kusakaki-jima, about 90 miles WSW. of Kagoshima Gulf, 
surface, on pumice. 
Lepas anatifera Linn6. 
Locality: Albatross station 4758, 70 miles W. of Cape St. James, Queen Charlotte Island, surface. 
Lepas pectinata Spengler. 
Locality: Albatross station 4897, 10-20 miles southwest of Goto Islands, Japan, surface. 
A much inflated and unusually smooth variety of this species occurs at Bering Island. It has been 
figured in Bulletin 60 of the U. S. National Museum, plate vm, figures 5, 6. This form may be known 
as Lepas pectinata beringiana, n. subsp. 
Genus OCTOLASMIS. 
Octolasmis orthogonia (Darwin). [PL xi, fig. 6 and 7.] 
1851. Dichelaspis orthogonia Darwin, Monograph on the Cirripedia, Lepadidae, p. 130, pi. 2, fig. 10 (locality 
unknown.) 
1907. Dichelaspis orthogonia Darwin, Hoek, Siboga-Expeditie, Monographic xxxia, Cirripedia, p. 25, pi. 2, fig. 14-18; 
pi. 3, fig. 1, i a , i b , io b , Malay Archipelago. 
The type locality of this species was unknown, but the typical form was rediscovered in the Malay 
Archipelago by the Siboga Expedition, where it was taken at several stations, in 40 to 1 12 meters. Two 
other forms very closely related to orthogonia were taken by the Siboga, Dichelaspis weberi Hoek and 
D. versluysi Hoek. Three specimens of 0 . orthogonia were taken by the Albatross at station 4936, off 
Kagoshima Gulf, in 103 fathoms, seated on Heteralepas. Two of these are figured (pi. xi, fig. 6, 7, no. 
38676 U. S. National Museum) to show the variation in shape of the plates, chiefly of the terga. In 
the larger specimen (fig. 7), length from apex to base of carina 10 mm., the median and occludent 
lobes of the base of the tergum are rather short and acute on the left side, as figured, but noticeably 
longer and less acute on the right side. The other example figured (fig. 6) has a capitulum 9.3 mm. 
long. The basal lobes of the tergum are very long and finger-shaped. The third example of the group 
has a tergum intermediate in shape between the two extreme forms figured. The basal disk of the 
carina is formed about as Darwin figures for D. orthogonia. 
The variations observed among these three individuals, which clung in a group to the peduncle of 
an Heteralepas, show that there is considerable variation in the shape of the terga among adult egg- 
bearing individuals. It seems not impossible that the three described species of this type, orthogonia, 
weberi and -versluysi might better be looked upon as variations or local races of a single widely distrib- 
uted species. 
The terga in these specimens are pink-tinted, and the valves are not much covered by cuticle. 
