W. D. Lang — The Eeptant Eleid Polyzoa. 63 



D. Apertures subtriangular to nearly circular. 



'«. Apertures large (about -33 mm. diameter). 



, _, , . (■ SemimnUelea Dixoni, n.sp. 



( o. Zoa3Cia immersed. Closed zo(]ecia numerous { g jj_ 



\ „ . J TVT 1 1 • f Reptoceritites Rowei, 



^ /8. Zooeoia emergent. JN o closed zocecia ...\ Greo'ory. B M. 



b. Apertures small (about •16--25mm. diameter). 



«. Some apertui-es drawn out distdly to ^\ ^Semimiatelea aeupunctata 

 point ; rim of apert. low, hardly thickened ^ ^^^^^^. . F, M.) 



distally. Closed zooecia numerous ... ) ' ' ' ' 



I j8. All apertures blunt distally, surrounded by \ Semimultelea irregularis, 



a fairly high rim which is generally I d'Orbigny. B, F, M. 

 I thickened distally. Closed zooecia I Reptelea ptilchella, 

 ^ numerous j d'Orbigny. F, M. 



Apertures triangular. 

 ,a. Apertures equilateral triangles, with the distal | ^^^ t,,^,,atelea sarissata, 

 angle produced to a point. Closed zocecia > ^ Greo-orv B M 

 numerous ... ... ... ; & 7' ' ' 



b. Apertures isosceles triangles, with small distal ) ReptomuUelea tuberosa, 

 angle. Closed zooecia numerous / d'Orbigny. B, F, M. 



c. Apertures equilateral triangles, with the angles, \ 

 especially the distal angle rounded. Rim thick I ReptomuUelea Reussi 

 and of equal thickness throughout. No closed I (Pergens). F. 

 zooecia ... ... ... ... ... ... / 



d. Apertures equilateral triangles, with the angles \ 

 rounded, the proximal angles more than the / Reptelea oceani 

 distal. Rim thick and of equal thickness l (d'Orbigny). F, M. 

 throughout. No closed zooecia / 



Apertures equilateral triangles, with the angles \ Semimultelea acupimctata 

 rounded, but some are drawn out distally. > CNovakr F M 



Closed zocecia numerous ... ... ... ) ^ '" ' * 



In the above table the following species mentioned in the British 

 Museum Catalogue have been omitted : — 



1. Reptelea (?) parasitica (von Hagenow). The specimens referred 

 by Gregory to this species are indeterminable worn fragments. 

 Von Hagenow's ^ and d'Orbigny's - figures are also of specimens too 

 worn for reference to any species. 



2. Semimultelea cupula, d'Orbigny. This, if an Eleid, is not a 

 reptant form. 



3. Semimultelea cenomana (d'Orbigny). Judging from d'Orbigny's 

 figure,^ this is a Cheilostome. 



The synonymy of the group is given in full in the British 

 Museum Catalogue. 



11. Bkitish Specimens of the ' genus ' Seiiimvltelea. 



Semimultelea irregularis, d'Orbigny. 



A specimen (D 7274) in the British Museum collection, with no 

 information attached, exhibits the zocecial characters of Semimultelea 

 irregularis, d'Orbigny. The zoarium is a multilamellar incrustation 

 whose upper surface is locally raised into knobs. These suggest 



^ Von Hagenow, 1846 : Geinitz, " Grundriss der Versteinerungs kunde," pi. xxiii b, 

 fig. 7. 



- D'Orbigny, 1853-1854: Paleontologie Fran9aise, Terrains Cretaces, vol. v, 

 pi. 787, fi^s". 17-20. 



3 D'Orbigny: loc. cit., pi. 788, fig. 3. 



