KONGL. SV. VET. AKADEMIENS IIANDLINGAR. RAND. 22. N:0 7. ,M P» 



1. THEMISTELLA STEENSTRUPI, C. BOVALLIUS, 1887. 



Pl. XIII, fig. 47—60. 

 The name is givou in hoiiour of Professor Japetus Sternstrup of Copeiiluigcri. 



Diagn. Caput non duplo altius quam longius, segmenta quattuor prima pera;i longitudinc a^quans. 

 Segmenta duo priora percei coalita, cetera libera. Metacarpus pedum permi primi paris 

 carpo longior. Pedés secundi paris diias partes pedum tertii paris longitiidine ajquantes; 

 processus carpi dimidio marginis posterioris metacarpi paullo longior. Pedes sexti paris 

 pedibus septimi paris multo longiores. Latera segmentorum plei post rotundata. Segmentum 

 secundum et tertium uri coalita. Ramus internus piedum uri primi et secundi pariuin di- 

 midium pedunculi longitudine fequaus. Telson rotundatum, pedunculo pedum uri ultimi 

 paris angustius, ac quinta parte longitudinis peduuculi ejusdem brevius. 



The liead is not twice as deep as long, and is as long as the first four perasonal segments 

 together. The first two perceonal segments are coalesced, the following are free. The 

 metacarpus of the first pair of pera3opoda is longer than the carpus. The second pair are 

 two-thirds as long as the third pair; the carpal process in somewhat more than half as 

 long as the hind margin of the metacarpus. The sixth joair are much longer than the 

 seventh. The lateral parts of the pleonal segments are rounded behind. The second and 

 third ural segments are coalesced. The inner ramus of the first two pairs of iiropoda is 

 about half as long as the peduncle. The telson is rounded, narrovver than, and not a fifth 

 part as long as, the peduncle of the last pair of uropoda. 



Colour. Yellowish brown. 



Lengtll. 4 mm. 



Halt). The tropical region of the Atlantic, Lat. ?>° N., Long. 25° "VV. (S. M.) 



Syn. 1887. Tliemistella Steenstrupi, C. BOVALLIUS. — »Systematical list of the Araphipoda 



Hyperiideai). Bih. t. K. Sv. Vet. 

 Ak. I-laiull. Bd. 11. N:o 16, 

 p. 23. 



T h e lu a 1 e. 



'l'he fore-part of the hody is unusually sliort, the head and perteon together being 

 shorter than the pleon. The integument is very thin and pellucid. 



The head is about a third part deeper than long. The antennal groove commences 

 above the middle of the front side, and is tolerably broad. The under side of the head 

 is rounded. 



The eyes occupy the whole surface of the head. The eye-cones are very short, and 

 are unusually wide at the apex. 



The jirst pair of antennai (Pl. XIII, fig. 48—50) reach to the hind margin of the 

 first ural segment. The first ioint of tlie peduncle is very thick and stout, and neai-l}' 



40 



K. St. Vet. Akad. Hand). Band. 22. N:c! 7. 



