12 Carl Bovallius, 



ment is scarcely more than a fourth higher than the fifth (41: 29), but 

 eight times higher than the seventh. All pereiopoda, with the exception 

 of the first and last pairs, carry branchial sacks. The epimerals are distinct. 



The first pair of pereiopoda are a little shorter than the second 

 pair. The femur is long, laminar. The carpus is broad, longer than the 

 metacarpus^ which is tapering towards the end, with a tuberculous exten- 

 sion at the hinder margin, against which extension the feebly curved 

 dactylus impinges. The dactylus equals a third of the length of the me- 

 tacarpus. 



The second pair. The femur is a little broader than in the first 

 pair. The carpus is shorter than the metacarpus. On this joint the 

 extension at the hinder margin is more developed than in the first pair, 

 armed with short strong spines, thus forming a good forfex. The dac- 

 tylus is longer than a third of the metacarpus. 



Of the other pereiopoda the fifth pair are the longest. The se- 

 venth pair are longer than the first. The branchial sacks of the second 

 pair are longer than half the legs (5: 7). Those of the third, fourth, 

 fifth, and sixth pairs are nearly as long as the legs. 



The pleon is like that of the preceding species. 



The outer ramus of the first pair of uropoda is longer than half 

 the inner, both are straight. The peduncle of the second pair reaches 

 beyond that of the first pair. 



The telson is longer than half the peduncle of the third pair of uropoda. 



Length. 15 m.m. 



Diameter of the globe. 12 m.m. 



Colour: H3'aline, with red spots. 



Habitat. The Atlantic: 28° N.L. 21" V.L., near the Canary Islands. 



3. Mimonectes Steeiistrupii, n. sp. 



The name in honour of Professor Japetus Steenstrup of Copenhagen. 



Diagn. Sphcera segmentis omnibus pcrcii formata. 



Lougitudo capitis tertiam partem altitudinis ieqiuui«. 



Antennœ superiores longitudinein capitis superautes, nou serratEe. 



Segmenta omnia pereii infläta. 



Pedes pereii tcrtii paris octavam partem diametri spliœrœ longitudiuc paidlo 



superantes. 

 Pedea uri prinii paris pedes secimdi paris valde superantes. 



The globe is formed of the head and all the pereional segments. 

 The head is three times higher than long. 



