12 BULLETIN OF THE 



lets were brown ; the rest, opalescent white. It is true that there is no 

 absolute proof that the peduncle had been lengthened, but 1 know not 

 how else to explain the extraordinary length and second attachment, and 

 I see nothing intrinsically improbable in the supposition. 



Genus WALDHEIMIA King. 



Waldheimia Kixg, Permian Fossils, p. 81, 1850. + Eudesia + Macandrevia 



Kixg. 

 Type Waldheimia flavescens Lam. sp. Hist., VII, p. 3,30, 1836. 



Waldheimia floridana Pourtales. 



Waldheimia floridana Pourtales, Bull. Mas. Comp. Zoul., I, No. 7, p. 127, 

 1868. — Dale, Am. Journ. Conch., VI, p. 112, 1870. 



Tcrebratula septata Jeffreys, Proc. Royal Soc, 121, p. 446, f 79, 1870. 



Terebratulei septigera Jeffreys, 1. c. 



Not T. (TerebrateUa) septata Philitpi, Moll. Sicil., II, p. 68, t. 18, f. 7, 1844. 



Not T. ( Waldheimia) septigera Loven, Ind. Moll. Scand., p. 29, 1846. 



T. ( Waldheimia) peloritana, var. Jeffreys, 1. c, not Seguenza Sicil. Brach., 

 pi. vi, figs. 1-10, 18C5. 



Florida reefs, between 110 and 200 fathoms, rocky bottom, Pourtales. 



This species belongs to a peculiar group of the subgenus Waldheimia 

 (sensu stricto), containing several recent and some fossil species. Tcrebra- 

 tula septata Philippi, to which species peloritana, septigera, and floridana 

 have been referred, proves to belong to a different genus (see Davidson, 

 Mon. Ital. Tert. Brach.) from any of them. T. peloritana is referred by 

 .Mr. Davidson to T. septigera, in which Signor Seguenza concurs. We 

 have, then, three allied but sufficiently distinct forms, as follows : Wald- 

 heimia floridana Pourt., W. septigera Loven, and W. Iiaphaelis Dall.* The 

 first is from the Florida coast, the second from the seas of Northern Europe, 

 and the third from Japan. 



The following table of measurements of large adult specimens will give 

 an approximate idea of their respective forms : — 



Length, inch. Width. Diameter. 



W. floridana 0.90 O.90 0.70 



W. septigera 1.20 1.10 0.80 



W. Raphaelis 1.75 1.30 1.00 



Thus it is seen that the smallest species is by far the widest and most in- 

 flated, proportionately; the second species is the flattest, in proportion to 

 its length ; and the third is the most elongated. I have taken the largest 

 adult specimens of each species for comparison ; that of the septigera being 

 far larger than the ordinary form of that species, as it is one collected by 



* Am. Journ. Conch., VI, p. Ill, pi. vii, figs, a, b, c, d, 1870. 



