DR. P. P. CARPENTER ON THE SHELLS OF PANAMA. 7 



case this and similar species must be moved to Xi/ii/f/lu, it" the n|ier- 

 culum be (as is [iresunied) Piirpuroid ; or to Jmijclu, it Nassoid. 



96. Coluwhella mopsta = Anachis m. 



97 ColvmieUa niyricans= Anachis n. 



9S. Ciihimhella porva. This appears to be only a dead specimen 

 of C. pi/f/mfca, P. IKU. 



99. CohiniheHa j))ilchrior is probably a Nitidella. 



100. Colnnihella pyijmcea=^Anachis p.fM. O.il. 



Hll. Cohivihvlln ni;iosn=Avnchis r. Tliis appears to be the 

 cnmmone.>t and most variable sjiecies of the genus. The typical 

 specimens are somewhat stumpy, with stout knobs. Then the knobs 

 pass into long, compressed ridges, and iinally chautte into narrow 

 bars. These are wide apart, or close, or nearly evanescent on the 

 back. The shape passes from the stumpy to an acuminate form 

 like costellata. Some adults are more than twice the size of others; 

 but the same variations are found in both extremes. The colours 

 are generally laid on in patches on the knobby specimens ; m fine 

 flames, on the smoother ones. In all varieties, it is known from 

 Jiuctvata bv the spiral striae over the whole surface ; and from vuiiu 

 by the shoulder, more or less developed into a keel, on the whorls of 

 the spire. 



102. ColumbeJIa stromhiformis, M. 616. 



10.3. Columbella tesselluta, C. B. Ad. (non G&&\i.)=^Anachis gua- 

 temalensis, live. 



104. Columbella turrita = Stronibina t. 



105. Columbella varia = A/iachis v. 



106. Columbella sp. ind. is the young of a species in Mus. 

 Cuming., resembling harpo'/ormis. 



107 Ricinula carbonaria = Engina c. 



108. Ricinula juyosa may be an Ent/ina, but has more the aspect 

 of the Pacific group Peristerida. 



109. Ricinula reei'iana=Engina pulchra, Rve. 



110. Cassis abbreviata=^Bezoardica a. On comparing a large 

 series of specimens from Cape St. Lucas with a similar series of C. 

 injiata from Tc^ias, I was unable to discover any specific differences. 

 It varies greatly, from each ocean, in painting, sculpture, height of 

 spire, &c. 



111. Cassis coarcfaia=Levenia c 



112,113, 114( = M.4S0), 115, 116(=:M. 481), 1 17, 118*( = M. 

 476), 119* ( = M. 477), 120 ( = M. 475), 121, 122 ( = M. 381, 

 galeatus), 123 ( = M. 449), 124 (=M. 448), 125. Stent. 



* Having now examined a large number of specimens of these two forms, I 

 have no hesitation whatever in regarding Comix regalitatis as simply a variety of 

 C. purpurascens. Similar difi'aeiices may be ob!>er\ed iu com[)ariiig large sexxes 

 of almost all Cones, * . _ ^ 



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