196 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I44 



Remarks. — BreyneUa is herein considered a junior subjective syno- 

 nym of Pliolampas. Its type species is very similar to the type species 

 of Pliolampas. Both are of similar shape and size with equal, open, 

 and broad petals, with broad poriferous zones, and a longitudinal 

 peristome. In both species the floscelle is well developed, with phyl- 

 lodes with five or six single pores in each outer series and one or 

 two in each inner. 



Lambert and Thiery (1921, p. 366) considered BreyneUa as a 

 synonym of Echinanthus Breynius, but referred all the species that 

 Gregory included in his original description of the genus to Plio- 

 lampas. Later, they (1924, p. 397) placed BreyneUa as a synonym 

 of Gitolampas. P. vassalli differs from Gitolampas in having broader 

 petals, with wider poriferous, narrower interporiferous zones, and 

 higher than wide peristome. Mortensen (1948, pp. 247, 249) pro- 

 visionally refers BreyneUa to Pliolampas, but because he mistakenly 

 thought that BreyneUa had four genital pores, he suggests that it 

 map be distinct from Pliolampas. Cooke (1942, p. 38) considered 

 BreyneUa a synonym of Echinolampas, but BreyneUa has much 

 broader equal poriferous zones with the outer pore greatly elongated 

 and strongly conjugate, a longitudinal periproct, and a higher than 

 wide peristome. 



Synonym of PLIOLAMPAS 

 Genus MILLETIA Duncan 



Milletia Duncan, 1891. Journ. Linnean Soc. (Zool.), vol. 23, p. 191. Type species 

 by original designation, Echinolampas elegantulus Cotteau, 1883. Bull. Soc. 

 Zool. France, vol. 8, pp. 458-460, pi. 15, figs. 6-8. Millet (1854, p. 178; 1865, 

 p. 611) has been considered the author of this species. However, in both 

 these references the name is a nomen nudum with no description, only locality 

 data. 



Remarks. — I was unable to find any specimens of the type species 

 in Europe. Cotteau (1883, p. 460) states that all the specimens are 

 in the collection of M. I'Abbe Bardin. 



Lambert and Thiery (1921, p. 371) and Mortensen (1948, p. 247) 

 consider Milletia a synonym of Pliolampas. Its type species is similar 

 to the type species of Pliolampas in shape, with a pointed posterior 

 margin, in having broad, equal petals with broad poriferous zones, 

 and in having a longitudinal peristome. It has only three genital 

 pores, a feature common in Pliolampas. Cotteau (1883, pi. 15, fig. 8) 

 shows double pores in the phyllodes of P. elegantulus. This is 

 certainly a mistake on the part of the artist, as the phyllodes are no 



