ri.ATK 00. 



Fig. 1. ddlioiisin JdiKiicullis. new siiecu'S I p. ."lliK ... ■ ,■ 



The iucnistiiii: I v|ic-spcciineii. X L'O. The long iienstoiiiie is chaiiictonstK'. 

 iliildli' .Tiicksouiiin (Castle Il.i.viU' liiiiesloiie) : AVilmiiiflton, Nortb I'ai-oluiii. 

 (';it. Xii. 0-1100, r.S.N.M. 



Fig. 2. r;"/co;).s/.s criiuirciif:. new siieeies (p. .5141. . 



The inenisthi;; •/....•wiiiiii. X 20, shnwiiit; the elnn^MteO narrow spiraniei, and the spines 



MidOleJaeksoiVian (Castle ITa.vne limestone) : Wilinin;.'(on, North Carolin.i. 

 Cat, No. 04101, TJ.S.X.M, 

 Fte *? C!ril('ni)sig verni€(ii(i, new species (p. 513). ... 



FIG. 3. G"','^:;^;;'"*,;,;;;,,;;,,,,,,-.,,,,,,;,,;,,, x 20. The mnuense siiiranu.n, the trianf^nlar avieulanun, 



an.l the wart-like p"-o.i"-tions of the frontal are to hi' notefl._ 

 Jliddle .Tael;.soniaii (Castle Ila.vne limestone) : \Vilinini;lon, North Carolina, 

 Cat. No. 04102, U.S.N.M. 

 Firs 4 5 ddlc'inxif: riichiiiii, new species tp. ol4), ... , :.-„i ,,.!., 



i Th,- inerustim.' V-oarinm. X 20, showin;: mature z.oeeia with spir.-unen and aMcnlaua, 



V few Youiii: zooecia without sjiiramen are present, 

 5 \neestrula and surroundins zooe<-ia, X 20. The aneestrnla is an ordniar.v /.ooeoinm. 

 Upper Jaeksonian (Oeala limestone) : Alachua, Florida, 

 Cat. No. 041133, T'.S.N.M. 

 Frr« 7 Strhi-uromU convexa Canu and Bassler, litlr (p. 515), 



G The Vnorustin^' zoarium, X 20, with ovioelled zooecia, Some of the zooecia exhibit the 



spiranien Imt many of them show the rectilinear rimiile. 

 7 Frai;ment of another zoarium. X 20, 



Lower .Jaeksonian ( Moodys marl) : .T,ickson, Mississippi. 

 Cat. No, 02003, U.S.N,M, 



^-- '-f-^^!:tvlZr^^'^^"x ^.^The round pore ^ust below the peristome is the 

 spiramen. The other large pores are avicnlaria. 



'• S"nSu-:^'S>^>-^ r>L Peristomie: ,k: peristomice; .., spiramen; /-•. tremo- 

 cyst: z, zooecium. 



10 The tvpe-specimen, natur.il size, , ,. ., ,^ t,. 

 Middle Jacl<sonian (Castle Hayne limestone) : Wilmin,ston, North Carolina. 



Cat. No. 04104. U,S,N.M. 

 Fif.s ll-''3 Scinilia.<!icclli(i c.rili.t, new species (p. ."il8), 



11 Four fr-T^nents of the thin, free, cylindrical zoarium, natural size. „ ,, ,. i 

 iV Cellulifei^us side of a zoarium. X 20, showing the peristomie with two small lateral 



13. D.;;^a'sro^?Llu;;S,Sr5 20. An aviculanum is developed and the lateral 



•Tiinoiidnires are Avell shown. , , . ., i 



14 Dm^il of a zoarium, X 20, in which the tremoc.^stal sulci are barely visible, 

 15 16 Frontal side of two fragments, X 20. The .sulci are quite distinct. 

 17 IS no IS" side of two fragments. X 20. showing the small round avicularm. 



' 10 Vertical secUonthi^ugh a branch, X 20, The zooecia are seen opening on one side, 



yiS:;«an'\m^on'diS;'^ Marianiia limestoiic. : AVest bank, Conecuh Kiver, 

 Escambia County, Alabama, 

 20, 21, Celli^^^r^ sWe'S tw^ffnl^ncnts from the Jaeksonian, X 20, forming a variety with 



closely arranged verticells. , .„ ■ , ■ 



oo oo rp,^^.,-, fi-;,gnieiits, X 20. exhiliiting the dorsal with aviculaua. 



"■ -Upper Jacksonhni (Ocala limestone) : Chipola Rixer, east ot Marianna, Moiida, 



Cat. No. 04100, T'.S.N.JI, 

 ^"''- ^tf \.^a;'sldr:y"he''^re:-S.,:?;:^|::f z^ai^inl- X 20. Three vows of small avicnlaria 



05 OS Tw<?fnr"ments X 20, showing the features of the eelluliferous side. 



' i?: 5oi4!l side of a larg.; fragment, X 20, hearing a lateral apophysis. The usual small 

 avicularia are present. 

 Middle .Jaeksonian: Near Lennds Ferry, South Carolina. 

 Cat, No. 04107, U,S,N.M, 



^^•^^^ 'tfc!^:;^i^:^'^:Jo^'^^e'^.:'^:;^^t^^^^^ X 20. There a. three rows of 

 ;■ B^Sde^'arZ;^^,^;^.^^"'^^- The .urface is granular, and two riws of 

 salient avicularia with pivot are present. 

 Middle Jaeksonian : Near Uenuds Ferry, South Carolina. 

 Cat. No. 04108, U,S,N,M, 

 Firt; ^0-.S5 C'lV/ffji/o/iom /!?i7on)ii.s, new species (p, o2Ul , , , , 



liGS, dlHdo. •'■'''' ' ' thread-like, branched zoaria, n.-itural size, 



n so VviUOrn'oiisshleo^-Lf fragments, X 20, showing the smooth frontal, the lateral 

 -n icularia and the usual aspect of the peristomice. 

 S3 V bifurcated fragment, X 20. The riniule of the aperture is visible. 



34 Dorsal of zoarium, X20, It is usually smooth, rarel,v porous, 



35 ° branch X 20, showing several zooecia provided with the spinainen, 



Umier Ja'cksoTiian (Ocala limestone) : Chipola Itiver, east of Marianna, Florida, 

 Cat. No. 04100, U.S.N.M. qj 



