THE MOLLUSCA HEDLEY. 419 



to have accepted the copy, bad beyond recognition, as original, and 

 copied it* in preference to Souverbie's. To the habitat he adds Fiji. 



As a synonym I would add the name of Rissoina quasillus, 

 Melvill and Standenf from Lifu. Neither figure nor description 

 of this are sufficient for decision, we are not told how many ribs 

 there are, whether continuous or discontinuous, etc., yet there 

 seems nothing incompatible between JK. quasillus and the shell under 

 discussion. That these authors should have failed to institute a 

 comparison between their supposed novelty and a shell so similar 

 from the same locality, suggests that they overlooked Souverbie's 

 description. 



Since so much confusion has enveloped K. exasperata, it is not 

 superfluous to present a drawing (Fig. 10) and remarks upon the 

 Funafuti specimens. 



Shell elongated, when well preserved slightly turriculated, 

 varies slightly in being more slender or more stout. Dead shells 

 are white. A fresh specimen has within the aperture four narrow, 

 spiral lines of golden brown ; outside, another such line colours 

 the anterior spiral lyra of the antipenultimate whorl, two such 

 the second and third of the penultimate, and three such the 

 second, third, and fifth lyrse respectively of the ultimate whorl. 

 Other worn specimens show traces of this colour pattern. On the 

 last whorl there are nineteen or twenty stout, narrow, erect, longi- 

 tudinal ribs, half the breadth of their interstices ; these arise at 

 the suture, and maintain an even size to the base, on attaining 

 which they suddenly cease. These ribs are repeated on the pre- 

 ceding whorls ; they are not continuous from whorl to whorl, but 

 each arises and ends between the projections of predecessors and 

 successors. They are fewer and relatively stronger on the earlier 

 whorls, being indicated on the second and fully developed on the 

 fourth. 



On the last whorl there are five spiral cords, which are half 

 the height of the longitudinal ribs. At the point of intersection 

 a bead arises on the ribs. The hollows in the lattice work thus 

 formed are square and are minutely spirally striated. The base 

 is encircled by two or three small and finely beaded lyrse. Three 

 spiral cords ascend for three whorls, growing weaker as they 

 proceed. The first whorl is dome-shaped, and the second keeled. 



These specimens are 2| to 3 J mm. long, and have seven to eight 

 whorls. 



Occurred in the lagoon in shallow water. 



The Chevert Expedition reported this species from Palm and 

 Darnley Islands, Queensland. .The Museum also possesses a series 

 presented by Mrs. J. G. Waterhouse, who collected them at Lord Ho we 



* Tryon Man. Conch., ix., 1887, p. 384, pi. Ivii., fig. 96. 



t Melvill & Standen Journ. Conch., viii., 1897, p. 308, pi. xi., fig. 65. 



