Cooke — Hawaiian Zonitidac and Snccineidae 267 



Godwinia haupuensis new species. PI. XX I \', 3 ; fio^. 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. 



Godivinia haupuensis is quite distinct from Godzvinia 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 "sinuotis, 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 hmg 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. hanpnensis is, however, somewhat 

 dififerent 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. 



[7] 



