Cooke—Hawanan Zonitidae and Succineidae 267 
Godwinia haupuensis new species. Pl. XXIV, 3; fig. 3. 
The shell is thin, with a dull upper surface, narrowly umbilicate, dark 
olive-buff, much lighter below the periphery, with a low broad conical spire 
and bluntly angulate at the periphery. Whorls 3%, slightly convex, separ- 
ated by a deep suture. The first whorl and a half are roughly sculptured, 
the costae broad and slightly arcuate. On the next whorl the sculpture con- 
sists of closely packed, distinct, rather arcuate costae; on the upper surface 
of the last whorl the costae are more irregular in height and position than 
on the first and second, and on the lower surface the costae are more deli- 
cate and are very evenly spaced. The last whorl descends so slowly that 
the periphery of the penultimate slightly overhangs the suture. Aperture 
rather large, its outlines straighter above, more curved below, and its mar- 
gins slightly approximating. 
Height 5.1, maj. diam. 8.4, min. diam. 6.6; apert. height 4.1, diam. 
5.5 mm. 
Kauai: Northern slope of Mount Haupu in the southeastern 
portion of the island. 
Type 58469 Bishop Museum; paratypes 17831 Bishop Museum 
and Academy of Natural Sciences, Philadelphia. 
Godwinia haupuensis is quite distinct from Godwinia caperata. 
The shell is smaller with the same number of whorls, thicker with 
a much duller and more distinctly costate surface; the peripheral 
keel is also more pronounced. The “sinuous, branching furrows” 
mentioned by Gould and characteristic of G. caperata are entirely 
lacking in adults of this species. They are faintly developed in 
juvenile specimens where the shells are much thinner. 
The upper and side surfaces of the foot (fig. 3, a) are dark 
colored except below the pedal grooves which are light; the sides 
of the head are also light colored. There is no distinct button near 
the end of the tail (fig. 3, b) as in G. caperata. The mantle is 
light except for two slightly dark patches of pigment, one over the 
heart and kidney and one over the intestine and ureter. The collar 
of the mantle is only slightly pigmented. The lung and the organs 
situated near and on it (fig. 3, c) are similar in both species. 
Genitalia (fig. 3, d). The female organs are very much alike 
in both species. The penis of G. haupuensis is, however, somewhat 
different from that of G. caperata. No protuberance near the base 
was found in any of the specimens examined. The vas deferens 
enters directly into the penis near its lower third. A short distance 
above this a cross section showed two nearly equal cavities (fig. 
U7 
