No. 2314. 



LIST OF RECENT BRACHIOPODA—DALL. 



335 



Genus PANTELLARIA Dall. 



Pantellarta Dall, Proc. Biol. Soc. Wash., vol. 32, p. 251, 1919. 



The genus MuMfeldtia is characterized among other things by the 

 peduncular foramen being normally confined to the beaked valve 

 as in most Terebratellidae, the extension of the foramen to the 

 brachial valve being due to wear and to that extent abnormal; 

 both valves are free and similarly sculptm-ed. In the present genus 

 -the foramen normally is confined to the brachial valve, only by wear 

 encroaching on the other; the brachial valve is applied to the sub- 

 stratum, reproducing its irregularities and except for those is smooth, 

 while the upper valve has radial sculpture. 



Type. — ■ MuMfeldtia monstruosa Scacchi. 



PANTELLARIA MONSTRUOSA Scacchi. 



Terebratula monstruosa Scacchi, Osserv. Zool., No. 2, p. 17, 1838; Cat. Conch. 



Regn. Napoli, p. 8, 1836 (name only). — O. G. Costa, Fauna del Regn. di 



Napoli, p. 43, pi. 9, figs. 4, 5, 1851. 

 Megerlia truncata var. monstruosa Monterosato, Poche note s. Conch, Medit. 



p. 4, 1875.— Davidson, Mon. Rec. Brach., pt. 2, p. 108, pi. 19, figs. 21, 22a, 



1887. 

 Miihlfeldtia monstruosa Fischer and Oehlert, Exp. Sci. du Travailleur et du 



Talisman, p. 87, pi. 7, figs. 12 a-c, 1891. 



Type locality. — Naples, Italy. 



Cat. No. 



173791 



173793 



173835 



173818 



173820 



173822 



173833 



173836 



110955 



173825 



173825a 



173828 



173832 



Locality. 



Cape Breton, France. 



Bay of Biscay 



Mediterranean 



Corsica 



Ajaccio, Corsica 



Sicily 



Palermo 



Naples 



Gulf of Naples 



Gulf of Naples 



Gulf of Naples 



.^gean Sea 



Adriatic Sea 



Collector. 



DeFolin.... 

 DeFolin.... 



Jeffreys 



Susini 



Susini 



Sowerby 



Monterosato. 



Tiberi 



Dall 



Tiberi 



Stefanis 



Spratt 



Issel 



Number 

 of speci- 

 mens. 



1 

 1 

 1 

 1 



2 



1 



1 yo. 



3 V. 



1 



This species, with the loop of MiiJilfeldtia, has a foramen and 

 lower valve like that of Platidia. Most of the figures indicate the 

 foramen as encroaching on the upper valve, but this is abnormal. 

 An examination of a perfectly imworn specimen wiU show conclusively 

 that the foramen is normally entirely confined to the brachial valve. 



