a04 MR. A. O. WALKER ON THE 
Fam. ATYLIDE. 
Paratytus eurratus (Costa). (PI. 27. figs. 27, 28.) 
Nototropis guttatus, Costa. Nototropis spinulicauda, Costa. 
Atylus Coste, Heller. 
St. 2H. Three young, the largest 3 mm. 
Very like P. vedlomensis (Bate), from which it differs in the 
relative proportions of the joints of the upper antenne and in 
the absence of the downward prolongation of the 1st joint of the 
5th pair of legs (8rd pereopods). Della Valle is certainly 
wrong in referring this species to Dexamine spinosa (Mont.), as 
the mandible has a small 3-jointed palp. 
DEXAMINE ? sprnosa (Dont.). 
St. 2u. Three or four young. 
The specimens resemble D. Thea, Boeck, rather than D spinosa, 
but are too young for certain identification. D. Thea has not 
yet been recorded in the Mediterranean. 
TRITETA GIBBOSA (Bate). 
Dexamine dolichonyx, Nebeski, 3. 
St.2H. One. Length 2 mm. 
GUERNEA coALiTa (Norman). 
St. 5,28. Two young. Length 1°5 mm. 
Fam. Metruipierip», Stebbing. 
MeLrurprppa, n. sp. (PI. 27. figs. 29, 30.) 
St. 5. Four specimens. Length 3 mm. 
This is an intermediate form between Melphidippa, Boeck, 
1870, aud Melphidippella, G. O. Sars, 1895. It has the 1st and 
2nd gnathopods alike in form, with the carpus expanded as in 
the former genus, while the enormous eyes and small terminal 
joint of the mandibular palp belong to the latter. As usual in 
these genera, the legs &c. are too imperfect to enable one to 
describe the species properly. I am not aware that either genus 
has been recorded from the Mediterranean before. 
Fam. GAMMARID#. 
GAMMARUS MARINUS, Leach. 
St. 2. Several. 
