BIOLOGICAL, SURVEY OF WOODS HOLE AND VICINITY. 
643 
Pandarus sinuatus — Continued. 
Hosts: Carcharhinus obscurus, C archarias litto- 
ralis (very common), Carcharodon carcharias, 
Mustelus canis. 
Breeds in July, August, September; eggs very 
numerous; nauplius larva very small and dark 
colored. 
Pandarus smithii Rathbun. 
R. Rathbun, 1886, p. 315 (sp. nov.); M. J. Rath- 
bun, 1905, p. 95; C. B. Wilson, 1907b, p. 410. 
Hosts: Carcharhinus obscurus, Carcharias litloralis, 
Carcharodon carcharias . 
Nesippus alatus Wilson. 
C. B. Wilson, 1905b, p. 130 (sp. nov.); 1907b, 
p. 426; M. J. Rathbun, 1905, p. 94. 
Hosts: Carcharhinus obscurus, Carcharias litto- 
ralis (females on gill arches, males on outside 
of body), Fundulus majalis (caudal peduncle), 
Mustelus canis. 
Breeds in July; nauplius of typical form. — Wil- 
son (MS.). 
Cecrops latreillii Leach. 
Verrill and Smith, 1873, p. 577 (citing Gould); 
R. Rathbun, 1884a, p. 489; M. J. Rathbun, 
1905, p. 96; C. B. Wilson, 1907b, p. 468. 
Parasitic on gills or outer body surface of Mola 
mo la, very numerous. 
Breeds from May to October. — Wilson (MS.). 
Orihagoriscicola muricata (Kroyer). 
M. J. Rathbun, 1905, p. 96 ( Lccmargus muri- 
catus), C. B. Wilson, 1907b, p. 473. 
Hosts; Mola mola, Selene vomer. 
Philorihragoriscus serratus Kroyer. 
C. B. Wilson, 1907b, p. 479. 
Vineyard Sound, on Mola mola. 
Family DiCHELESTiimE. 
Anthosoma crassum (Abildgaard). 
Verrill and Smith, 1873, p. 577, 460 (no local rec- 
ords); R. Rathbun, 1884a, p. 490; M. J. Rath- 
bun, 1905, p. 97. 
Hosts: Carcharias litloralis, Squalus acantkias, 
“mackerel shark,” Mola mola; attached to 
the inside of the opercula, roof of mouth, or a 
fin, rather rare. — Wilson (MS.). 
Lernanthropus brevoortias Rathbun. 
R. Rathbun, 1887, p. 563 (sp. nov.); M. J. Rath- 
bun, 1905, p. 97. 
On gills of the menhaden ( Brevooriia tyrannus), 
very abundant at times. 
The male is not yet known. 
Lernanthropus pomatomi Rathbun. 
R. Rathbun, 1887, p. 567 (sp. nov.); M. J. Rath- 
bun, 1905, p. 98. 
On gills of Pomatomus saltatrix, mostly female 
specimens recorded. 
Dichelesthium siurionis Hermann. 
R. Rathbun, 1884a, p. 490; M. J. Rathbun, 1905, 
p. 97. 
From gill cavities and nasal cavities of “Acipen- 
ser oxyrhynchus” ( =sturio ). 
Breeds in July. — Wilson (MS.). 
Eudactylina nigra Wilson. 
C. B. Wilson, 1905b, p. 131 (sp. nov.); M. J. 
Rathbun, 1905, p. 97. 
Type specimen from Buzzards Bay. 
Parasitic on gills of Carcharias litloralis, “many 
hundreds may often be secured from a single 
shark. ” 
Family AnthEacherid^. 
Philichthys xiphice Steenstrup. 
Linton, 1901, p. 448; M. J. Rathbun, 1905, p. 98. 
“Woods Hole region,” on Xiphias gladius . — 
C. B. Wilson (MS.). Six specimens found “in 
the frontal sinuses of a swordfish head.” — 
Linton. 
Sphcerifer lintoni Wilson. 
Linton, 1900, p. 285; M. J. Rathbun, 1905, p. 98. 
Woods Hole; found by E. E. Tyzzer “ under the 
skin on the preopercular bone of a squeteague 
( Cynoscion regalis). ” — Linton. 
Family LERNAjid^E. 
Pennella costai Richiardi. 
M. J. Rathbun, 1905, p. 99. 
On Xiphias gladius, the head buried in a cyst 
formed within internal organs of host; often 
30 or 40 upon a single fish, appearing to impair 
its vitality. — Wilson (MS.). 
Breeds in July. 
Pennella filos a (Linnaeus). 
M. J. Rathbun, 1905, p. 99 (no local records). 
Hosts: Mola mola, Xiphias gladius; the body of 
the parasite being external, the head buried 
within the tissues of the host; not so common 
as P. costai. (Not definitely recorded for local 
waters.) 
Cernceenicus radiatus (Lesueur). 
Verrill and Smith, 1873, p. 578, 458 (Lerneonema 
radiata)-, R. Rathbun, 1884a, p. 491 ( Lernceo - 
nema radiata)-, M. J. Rathbun, 1905, p. 99. 
