BIHANG TILL K. SV. VET.-AKaD. HANDL. BAND 12. AFD. IV. N:0 4. 17 



segment; those of the last segment are the longest, equalling 

 two thirds of the segment. 



The ovitectrices are feebly striated, not reaching beyond the 

 first pleonal segment. 



The pereiopoda (Pl. IV, lig. 43 and 44). The first to third 

 pairs increase in length, the fourth are ahruptly shorter, the 

 following increasing, the last pair are only a little longer than 

 the sixth. The dactyli of the hrst three pairs are of mode- 

 rate size, as long as the two preceding joints, feebly curved, 

 those of the last two pairs are short, shorter than the metacarpi. 



The pleon is broader than long (7 : f)), shorter than the last 

 two pereional segments (-5:6); the first segment is the longest 

 and broadest, the three siicceeding are subequal in length, the 

 last only a little shorter than the first. The posterior corners 

 are prodnced, sharp-pointed, decreasing in length backwards. 



The pleojioda are long, reaching beyond the midth of the urus. 



The 7irus is tolerably long, a little longer than the pleon 

 (11:10), rounded, broader than long (13:11); the midth of 

 the hinder margin is feebly produced. 



The urop)oda (Pl. IV, lig. 45) reach far beyond the nrus, 

 the peduncle is broad, the projecting part obtuse. The inner 

 ramus is a third shorter than the outer, almost as long as the 

 peduncle, both are elongate ovate. 



Colour. Greenish brown. 



Lencjtli. 20 mm. 



Hah. The Meditcrranean? (S. ]\I.) Collected by D. J. 

 Hedenborg. 1838. 



0. Auilocrji guinensis, n. sp. 



Diagn. Corpus ellipticum, ter fere longius quam latius. 



Caput latum, niargine frontali recto, quam segmeutum quartum 

 pereii ter angustius. , 



Or/uli distincti, elongati ovati. 



Antimncp primi paris paulo compressae; autennte sccundi paris 

 longiores, paulo angustiores, leviter compressae. 



Anguli posteriores segmentorum quarti et quinti /;f /-^n trimcati. 



Femora pednm perfii parhim quattiior posteriorum uon carl- 

 nata, pedes septimi paris ceteris multo longiores. 



Segnientura primum plei partim obtectum, segmenta cetera 

 subtequalia. 



ZTfus leve, rotuudatum, longitudiue latitudinem aequans. 



Rami pedum vri ajqiiales, elongati ovati. 



2 



