MancJiester Memoirs, l^o/. liii. (1909), No. %\. 15 



*Polystomella crispa (Lintie), sp. 



Polystomella crispa (Linnc^ Williamson ('58), p. 40, pi. 

 3, figs. 78-80. 



P. crispa (Linnc), Carpenter ('62), p. 278, pi. 16, figs. 

 4-6. 



P. crispa (Linne), Brady ('84), p. 'J},^, pi. 1 10, figs. 6, 7. 



P. crispa (Linnc), Flint ('99), p. 338, pi. 80, fig. 3. 



I'ine and typical examples are common fi-om this 

 locality. 



^Polystomella verriculata, Brady. (PI. 5, Fig. 3). 



Polystoinclla verriculata, Brady ('84), p. 738, pl. iio, 

 fig. 12. 



P. verriculata (Brady), Millett (104), p. 604, pl, 1 1, fig. 3. 



The Delos examples are small, and not very well 

 developed. The net-work appearance caused by the 

 joining of the septal ridges and retral bars, as a rule, only 

 shows on the earlier chambers. Very rare. 



* Polystomella macella, Fichtel and Moll, sp. (Pl. 5, Fig. 4). 



Nautilus 1/iacellus, var. a, Fichtel and Moll, (:03), p. 66, 

 pl. 10, figs. e-g. 



Polystomella lessouii, d'Orbigny ('39), p. 29, pl. 3, figs. 

 1-2. 



P. Jichteliaua, d'Orbigny ('46), p- 125, pl. 6, figs. 7, 8. 



P. macella (F. and M.), Brady ('84), p. 737, pl. no, 

 figs. 8, 9, II. 



Good examples of this species are present. The tests 

 are typical, with a slightly depressed umbilicus, and acute 

 peripheral edge. Some of the tests are flatter than the 

 one illustrated, and have spines projecting from the edge 

 of the earlier chambers I have still finer specimens from 

 dredgings near Mount Athos. Rather rare. 



