-"? DR. P. P. CARPENTER ON NEW SPECIES 



ni/mphalis, but differs in the internal scars. Externally it resem- 

 T. dombeyi, Lam. (= Scrobicutaria prodacta, Cpr. P. Z. S. 18.5.5, 

 p. 230), but is easily recognized by the strictly Tellinoid ligament 

 and anterior lateral tooth, by the posterior portion being pinched 

 instead of waved, and by the junction of the pallial sinus with the 

 opposite scar. By the same characters it is distinguished from T. 

 tersa, Gld., which closely reseml)les »S. dombeyi, var., in Mus. Cum. 

 Like many other Tellens, it has a white and a pink variety. The 

 name was printed by an oversight in Brit. Assoc. Hep. 1803, p. 669, 

 as A. amph'ctuns ; but as it was unaccompanied bv a diagnosis, and 

 does not describe the shell, uo confusion will arise from reverting 

 to the name first given. 



LUCINA UNDATA. 



L. t. convf'xa, tenuiore, alhida; tota superjicie llrulis co7icenfn'cis 

 creben'imis, compressis, hand acutis ornata, interstit'iis mini- 

 mis ; parte ventruli costis radiantibus iii., obtusis, liitis, vali- 

 dissimis, interstifiis parvis ; lunula maxima, a sulco bene defi- 

 nita, sub umbonibus incurvatis fossa alta minuta indent ul a ; 

 parte postica alata ; maryine a costis valde undato, minute 

 crenulato ; liyamento quasi iiiterno : intus dent. card, parvis, 

 a fossa lunulari intortis ; lat. curtis, obtusis ; cicatr. adduct. 

 antica irreyulari, postica subovuli ; linea palliari prope mur- 

 ffinein sita, undata. 

 Long. -4.5, lat. -44, alt. -3. 

 Hab. Gulf of California (teste Howell). 



The outline somewhat resembles Cryptodon ; but the aspect 

 is more that of Verticordia, while the minute subumbonal pit 

 is suggestive of Opis. The shell is sexpartite ; the portion between 

 the anterior rib and the lunule resembles a fourth rib, while tlie 

 projecting Innule and the posterior wing are quite distinct from the 

 body of the shell. The specimen sent by Mr. Howell to the Smith- 

 sonian Listitution was completely smashed. The diagnosis is written 

 from a perfect shell sent by Dr. Newcomb to Mr. Cuming. 



Calliostoma (?lima, var.) ^quisculpta. 



C. t. "C. limse" simili ; sed avfr. planatis, suturis hand dis- 

 tinctis ; sculptura reyidari ; jun. monilibus spiratibus inter se 

 tequaVtbus ; t. adntta majore et minore alternantibus ; colore 

 rufescente, yranulis interduin rufofusco maculutis. 

 Hub. Acapulco {Newberry). 



Dr. Newberry's specimens agree in most essential respects with 

 " Trochus lima, Phil.," in C. B. Ad. Pan. Shells, no. 276, which 

 appears identical with the shells marked " Ziziphinus antunii, Koch, 

 N. Zealand," in Mus. Cuming. The Acapulcan shells are quite 

 flat, while those from Panama are for the most part shouldered as 

 in C. eximium, Rve. (= C versicolor, Mke. Maz. Cat. no. 28D). 

 However, there is no little variation among the Professor's sjieci- 

 mens of C. lima, and some are so slightly shouldered that the Aca- 

 pulcan form may be a local variety. 



272 



