20 BULLETIN 104, UNITED STATES NATIONAL MUSEUM 



This form is recorded by Kiaer and Awerinzew from the Arctic of 

 Siberia, Greenland, and off the coast of Norway. I had it from the 

 Canadian Arctic Expedition. 



The form figured by Heron-Allen and Earland from the west of 

 Scotland as " Polystomella decipiens Costa" is this species. Their 

 Figure 21 is very close to the figures of incerta from the same general 

 region. Costa's species evidently has a granular umbilical region 

 and is a different species, the original figure showing a somewhat 

 keeled specimen. 



ELPHIDIUM INCERTUM (Williamson), var. CLAVATUM, new variety 



Plate 7, figure 10 a, b 



Variety differing from the typical in the ornamentation of the 

 test, the umbilical portions being occupied by several large irregular 

 bosses, very distinct but not forming a definite umbonate mass, test 

 usually yellowish-brown in color. 



Holotype (Cushman Coll. No. 10400) from Spar Landing, French- 

 mans Bay, Me. 



This variety is common on the coasts of New England and north- 

 ward. It occurs on the northern coast of Europe as well. 



ELPHIDIUM STRIATG-PUNCTATUM (Fichtel and Moll) 



There are very many Atlantic records referred to this species. 

 The types of Fichtel and Moll were from the Arabian Sea, and are 

 very different from the many forms assigned by later authors to 

 this species. Some of these forms will be found here under ElpMdium 

 incertum (Williamson), E. excavatum Terquem, etc. 



For the type form of ElpMdium macellum (Fichtel and Moll) see 

 Cushman and Leavitt.^ 



ELPHIDIUM MACELLUM (Fichtel and Moll) 



Although this species is recorded from the Atlantic by authors, 

 the specimens I have seen are not the same as this species as developed 

 at the type locality in the Mediterranean. 



For the type form of ElpMdium macellum (Fichtel and Moll) see 

 Cushman and Leavitt.* 



ELPHIDIUM CRISPUM (Linnaeus) 



Numerous authors have recorded "Polystomella crispa" from the 

 eastern coast of the Atlantic. Williamson in 1858 figured specimens 

 such as occur off the southern coast of England and which are repro- 

 duced here. These are not the same as the Mediterranean types of 

 ElpMdium crispum, but are more like E. macellum in some of their 

 characters. The early stages have a series of sharp spines about the 

 periphery but these are usually reduced and finally wanting in the 

 adult. In some respects these forms are close to d'Orbigny's 



• Oontr. Cushman Lab. Foram. Res., vol. 5, 1929, p. 10, pi. 4, flgs. 5, 6. 



* Idem., vol. 5, 1929, p. 18, pi. 4, flgs. 1, 2. 



