364 Mr. E. A. SmitL on the Genera 



1897. TtirrifeUn leptomita, Melvill & Sykes, Proc. Malac. Soc. vol. ii. 



p. 171, pi. xiii. ligs. 12, \2a, vol. iii. p. 35. 

 1901. E(/Usia leptomita, Melvill & Standeii, Proc. Zool. Soc. 1901, 



vol. ii. p. 357. 



Hah. China Sea [Ad. ^- Rvp.) ; off ]\lalanipa Island, 

 Basilaii Strait, Philippine.^, 10-20 fathoms {Watsoii) ; Jfipan 

 [A. Adams) ; Andaman Is. [Melcill Sf St/kes) ; Persian Gulf 

 and Arabian Sea, west of Bombay {Melvill dls Standen). 



This species is smaller than E. spirata, has fewer spiral 

 threads, and the whorls are not tcibiila'ted or channelled at 

 the u|^)er part. The figure in the ' Samarang,' like other.s 

 on the same plate, is greatly enlarged, the type beino^ only 

 28 mm. in length, and that given b}'^ Melvill & Sykes in 

 li:;98 was taken from Adams's type of E. cumingii. In 

 Dr. J. E. Giay's collection, preserved in the British Museum, 

 is a still larger specimen, which, if the spire were perfect, 

 would measure 40 mm. in length, and its last whorl is 

 11'25 mm. in width. It is worthy of notice that even a 

 greater disparity in size occurs in specimens of Mesalia 

 hrevialis. 



With regard to E. leptomita, I have no hesitation in 

 regarding it as identical with tricarinata^ notwithstanding 

 the remarks offered by Messrs. Melvill, Standen, and Sykes. 

 Tiiey observe that "the type has five carinae at least on the 

 last whorl, and ' tricariuata ' is therefore an inappropriate 

 name.'' On reading the original description, it is seen that 

 this character is an allusion to the three princijial keels on 

 the upper whorls, and the authors, Melvill & Sykes, employ 

 the same word in the description of leptomita. They say 

 that the last whorl is " quadricaiinato." This is incorrect, 

 for an examination of their type shows that there are six 

 carinse, as described by A. Adams in E. cumingii. There 

 are four princi|jal keel-^, and above these two others, the 

 upper one nearly at the suture, which consequently is chan- 

 nelled. 



In the Proc. Zool. Soc, IMelvill & Standen observe that 

 " tlie extremes seem distinct from E. carinata, Ad. & Rve., 

 but the species is evidently, though rare, veiy widely distri- 

 buted, and intermediates may, in time, he found to occur." 

 The italics are mine. Since I can discover no differences in 

 leptomita, the tuture need not be taken into consideration. 



Turritella cuiisperso, Adams & Reeve, placed by Tryon as 

 a variety of the present species, is a true Turritella, and 

 entirely distinct in every respect. 



Pvotoma pulchruin, Sowerby, from Sierra Leone (Proc. 



