12 THE NAUTILUS. 



in length, and except for size represent the typical pediculus, i. e. 

 those with the finer ribbing, about 18 ribs showing on the inner margin 

 of the outer lip, with about 7 intermediate ones which do not reach 

 the inner margin. A study of the recent forms seems to warrant the 

 varietal name of 1. pediculus permagnu. 



In a large series of over 100 recent specimens there is a great' 

 range of variation; the largest is 17 mm., the smallest 6 mm., in 

 length. The larger specimens show a noticeable unformity in size, 

 about fifty percent measuring between 15 and 17 mm. The speci- 

 mens from near Jupiter Inlet, Fla., represent for the most part the 

 vareity labiosa Gask., with a perceptibly broader inner lip, with 

 about 15 ribs extending to the inner margin. The variety cimex is 

 smaller (about 8 to 10 mm.), and in the typical form there is a tend- 

 ing for the spots on the right side to become confluent. 



C. W. JOHNSON. 



FULGUR CANALICULATUM SPAWNING in the New York Aquarium 

 is figured and described in the Zoological Society Bulletin for March, 

 1910, pp. 637, 638. Eight days were occupied in spawning one 

 string of egg capsules. 



AN EARLY STAGE OF ACM^EA. By EDWARD S. MORSE (Proc. 

 Boston Soc. Nat. Hist., vol. 31, pp. 313-323, 1910). An exceedingly 

 interesting paper in which the author shows that the young of Acmeea 

 testudinalis is not nautiloid, but begins with u blunt caecal-like cap 

 without the suggestion of a coil. The specific characters separating 

 A. testudinalis and A. alveus are also fully discussed. 



NEW OLIGOCENE SHELLS FROM FLORIDA. By CARLOTTA JOA- 

 QUINA MAURY (Bull. Amer. Paleontology, vol. 4, No. 21, March, 

 1910). This Bulletin contains the descriptions and figures of 84 new 

 species, principally from the Oak Grove and Chipola marls. The 

 types are either in the Cornell University or the collection of Mr. T. 

 H. Aldrich. 



PALEONTOLOGY OF THE COALINGA DISTRICT, CALIFORNIA. 

 By RALPH ARNOLD (Bull. 396 U. S. Geol. Survey). Over 50 new 

 forms of tertiary mollusca are described and figured. Carinifex 

 marshalli, proposed for C. newberryi Cooper (not Lea) has evidently 

 already been named by Mr. Harold Hannibal C. santadara, NAUTI- 

 LUS, vol. 23, p. 40, July, 1909. 



