418 W. T. Calman 



Occurrence. — Station 29. Depth 100 metres. 



^annastacus unguiculatus Spence Bäte. 

 N. unguiculatus^ Gr. 0. Saks, Arch. Math. Nat. 4. Bd. 1879 p. 109, 

 pls. 55—57. 



Four female specimens are referred to tliis species, but as 

 they are extremely dirty and otherwise in poor coudition their exact 

 agreement in all details with each other or with the published 

 descriptions eannot be asserted. One of them at least has the 

 spines on the surface of the carapace more numerous and longer 

 and all of them have the antero-lateral angle less produced than in 

 Sars' figure. 



Occurrence. — Station 25. Depth 200 metres. 



Nannastaciis longiro stris G. 0. Sars. 

 N. longirostris, G. 0. Sars, Arch. Math. Nat. 4. Bd. 1879 p. 119, 

 pls. 58, 59. 

 A single male specimen of this peculiar species was obtained. 

 It agrees well with Sars' figures in almost ali characters visible 

 without dissectiou but the antennules are considerably longer and 

 more slender. 



Occurrence. — Station 29. Depth 100 metres. 

 Distribution. — Spezia, 6 — 10 fathoms (Sars). 



Cuììiellopsis Puritani n. sp. (pi. 27 figs. 10 — 12), 

 Five specimens in the present coUection resemble very closely 

 the species which I have described under the name C. helgce 

 (Fisheries Ireland Se. luvest. 1904 N: 1 (1905) p. 28) but preseut 

 ditferences which seem to forbid, for the present, their ideutiticatiou 

 with that species. The type specimens of C. helgce are an adult 

 female and an immature male, while the present form is represented 

 by adult and immature males. Compariug the immature specimens 

 of the two the following are the chief differences to be observed. 

 The size of the Mediterranean specimens is much less, the largest 

 immature male measuring 2.7 mm. against 4.7 mm. in the Irish 

 specimens and the adult male (fig. 10) about 3.6 mm. while the sub- 

 adult female formerly described measures 5.8 mm. The longitudinal 

 depression on the side of the carapace is bouuded below by a 

 sharply marked ridge or fold which is conspicuous eveu in the 

 youngest specimens. In the type-specimens of C. helgat this ridge 

 is represented by a luw rouuded swclling which only at its anterior 



