NO. 12 STRONG AND HERTLEIN: MARINE MOLLUSKS 205 



Turbonilla (Gareliopsis) stenogyra Dall & Bartsch 



Turbonilla (Careliopsis) stenogyra Dall & Bartsch, U. S. Nat. Mus., 

 Bull. 68, 1909, p. 130, pi. 12, figs. 1, la. "San Hipolito Point, 

 Lower California." 

 Four specimens dredged at Loc. 27,229 (C.A.S.), in Bahia Honda, 

 Panama. These specimens have only 6 or 7 whorls and are propor- 

 tionally smaller than the type from San Hipolito Point, Lower Cali- 

 fornia, which has 9 whorls. They agree with the description of the type 

 in shape and details of sculpture, including the axial ribs on the upper 

 part of the early whorls, a character whiclT is mentioned in the de- 

 scription but not shown on the figure. These ribs are distinct in the 

 Panama specimens. 



Turbonilla (Gingulina) academica Strong & Hertlein, new species 



Plate 19, Fig. 14 



Shell elongate-conic, translucent white; nuclear whorls almost en- 

 tirely, obliquely immersed in the first postnuclear whorl; postnuclear 

 whorls 6, well rounded, sutures distinct; spiral sculpture of rounded 

 keels, of which 1 appears on the first and second, 2 on the third, and 

 3 on the remaining whorls; the first of these keels is immediately above 

 the suture and appears on all whorls, the second is a little above the 

 middle of the whorl, and the third about half way between the other 

 two, the space between the upper keel and the summit of the whorls is 

 smooth and flattened; axial sculpture of faint riblets appearing in the 

 spaces between the keels; periphery of last whorl marked by a narrow 

 groove; base rather long, well rounded, smooth; aperture oval, some- 

 what effuse posteriorly, outer lip thin, scalloped by the ends of the 

 spiral keels; columella slender, curved. The type measures: length, 2.7 

 mm; diameter, 0.9 mm. 



Holotype: No. 748 (Calif. Acad. Sci. Paleo. Type Coll.), from 

 Loc. 27,229 (C.A.S.), dredged in from 3 to 9 fms. in Bahia Honda, 

 Panama. L. G. Hertlein collector. Five additional specimens were 

 dredged at the same locality. 



This species resembles Turbonilla urdeneta Bartsch^^ from Lower 

 California, but is smaller and has only 3 instead of 4 spiral keels. 



39 Turbonilla (Cingidina) urdeneta Bartsch, Proc. U. S. Nat. Mus., vol. 52, 

 May 29, 1917, p. 660, pi. 45, fig. 1. The type was "dredged in shallow water 

 in Santa Maria Bay, Lower California." Other specimens were dredged in 

 shallow water at Magdalena Bay and in 13^ fms. off Redondo Point, Magda- 

 lena Bay, Lower California. 



