312 PARTULA, CAROLINE ISLANDS. 



Group of P. lineata. 



108. P. LINEATA Lesson. PI. 39, figs. 19, 20. 



The shell of this species is oval, long, with conic spire, a 

 half whorl swollen. The aperture opens on the right side. 

 It is contracted by a thick rim recurved 'backward, and di- 

 lated at its junction with the columellar axis, a little in ad- 

 vance of the umbilical crevice. It. is nearly of the same size 

 and shape as the 0-Taite Partula [P. otaheitana], -but it is 

 constantly a little shorter and more inflated. The color is 

 pale yellow with two ribbon-like stripes of fawn, one short, 

 surrounding the opening of the umbilicus, the other running 

 around the middle of the large (last) whorl, and covered 

 by the suture on the spire. Length 8, diam. 5 lines (about 

 16x10 mm.). (Lesson). 



Caroline Islands: Ualan (Voy. Coquille). 



Partula lineata LESSON, Voy. autour du Monde de La 

 Coquille, Zoologie, p. 324, pi. 7, f. 8, 9. IPartulus torosus 

 BECK, Index Molluscorum p. 57 no. 6 (undefined, but identi- 

 fied with a ? with P. lineata Less.). 



This species was 'considered the same as P. suturalis Pfr., of 

 Moorea, Society Islands, by Mr. Garrett in his paper of 1884, 

 but later he doubted the identification, in a letter written to 

 Dr. Hartman. Mr. Brazier, who visited Ualan, did not find 

 Lesson's species (H. H. Smith, Ann. Carnegie Museum i, p. 

 446). 



The general appearance of the shell is that of a Society Island 

 species; but the Coquille did not visit the island of Moorea 

 where the forms (P. suturalis, P. t&niata) best agreeing with 

 Lesson's description occur, but only Tahiti and Borabora, ob- 

 taining P. otaheitana at the former, P. lutea at the latter 

 place. They were at Ualan in the Carolines on June 15th, 

 1824, anchoring in Coquille Harbor on the N.-W. side of the 

 island. 



In view of the general reliability of the locality records 

 in the Zoology of the Coquille, and the imperfection of our 

 knowledge of the shells of Ualan, I think it not improbable 

 that P. lineata may eventually be found there. 



