94 IOWA STUDIES IN NATURAL HISTORY 
on the inner surface near the upper margin, and the median 
point of the front, is more the narrow triangularly produced 
anterior margin of the carapace forming a flattened rostral 
point, than a more or less distinct spine as seems to be usual 
with larger specimens of this species; the smallest specimen 
available for comparison is not less than 43 mm. long from tip 
of rostral projection to end of telson. Our specimen may rep- 
resent the juvenile or non-mature form of G. acanthochirus. 
Callianidea levicauda Gill 
Callianidea levicauda Gill, Proce. Acad. Nat. Sci. Phila., XI (1859), p. 
167—Rathbun, Bull. U. §. Fish Comm., XX, pt. 2, 1900, (1901), 
p. 94. 
Needham’s Point, Barbados; 3 (2 ovig.). Pelican Island, 
shallow, May 14; anterior portion of one specimen. 
Family Paguride 
Paguristes grayi Benedict 
Paguristes grayt Benedict, Bull. U. S. Fish. Comm., XX, pt. 2, 1900 
(1901), p. 146, pl. 5, figs. 1, la. 
Antiona, 9 dan. 1;.1 .. 
Clibanarius tricolor (Gibbes) 
Pagurus tricolor Gibbes, Proc. Amer. Assoc. Ady. Sci., III (1850), p. 189 
[25]. 
Clibanarws tricolor Stimpson, Proc. Acad. Nat. Sci. Phila., X (1858), p. 
234.—Benedict, Bull. U. S. Fish Comm., XX, pt. 2, 1900 (1901), p. 
142, pl. 6, fig. 2. 
Pelican Island; 50 (4 ovig.). Pelican. Island, shallow; two 
specimens. 
The larger lot of specimens is unmistakably this species, as 
the color is still well marked. 
Calcinus tibicen (Herbst) 
Cancer tibicen Herbst, Naturg. d. Krabben u. Krebse, II (1791), p. 25, 
Plo Zap ties. 
Calcinus sulcatus Benedict, Proc. U. 8. Nat. Mus., XVI (1893), p. 539.— 
Bull. U. 8. Fish Comm., XX, pt. 2, 1900 (1901), p. 141, pl. 5, figs. 3, 
3a.—vVerrill, Trans. Conn. Acad. Sci., XIII (1908), p. 439, text figs. 
56, 57, pl. 28, fig. 7—Rathbun, Proc. Wash. Acad. Sci., II (1900), 
p. 144. 
Calcinus tibicen Rathbun, Rapport van de Visscherij] en de Industrie van 
Zeeproducten in de Kolonie Curacao, uitgebracht door Prof. Dr. J. 
Boeke, pt. 2, (1920), p. 329 [13]. 
No label, three specimens. 
