KONGL. SV. VET. AKADKMIKNS IIANDLINGAR. BAND. 22. N:0 7. 391 



In the same year he described the male form of the species as follows: 



»Die Hyperine, welche ich als Mannchen der Phr. eloiu/ata in Anspruch nehnie, hat eine 

 Lange von c. 12 in in. nnd schliesst sich in der gesainmten Leihesform deni beschriebenen Weib- 

 chen an; allerdings fallt der gedruugene Ban des Abdomens nnd die kraftigere Entwieklung 

 seiner 3 Schwimmfusspaare als eine Ditterens in die Augen, welcher man anfangs die Bedentung 

 einer Artversehiedeuheit beilegt. indess gewinnt man durch die Untersuchung der Augen una 

 namentlicli der Mundwerkzeuge uud der Brustglie&niassen bald die Ueberzeugung, dass es sich 

 uur urn Unterschiede des Geschlechtes handelt. Die Mundtheile stimmen mit denen des Weib- 

 chens fast vollstandig i'lberein, der inneren Lobus der ersten Maxille besitzt ganz dieselbe Be- 

 zalmung als dort, der jiussere die gleichen Kerhen an dem einen Seitenrando. Nur das driite 

 zur Unterlippe versebmolzene Kieferpaar zeiclmet sich durch eine medianc kamniartige Erhehung 

 des Basaltheiles aus. Die Thoracalftisse aber zeigen bis in die Einzellieiten die namlichen Form- 

 und Grossenverhaitnisse, entbehren aber der inneren blattformigen Anhange, welche beini Weib- 

 chen am dritten, yierten uud funften Paare zur Herstellung eines Brutraumes dienen. Die 3 

 Fa are von Branchialsackchen sind an den entspreehenden Segmenten vorhauden, uud der Mangel 

 jener Lamellon weist auf die Natur nnd die Leistungen ties mannlielien Geschlechtes bin. Kbenso 

 wird man audi die allerdings auffallend modificirten Antennen auf die eigenthumlichen Leistungen 

 des Mannchehs zuruckfiihren konnen.u 



In 1877 Streets gave a detailed specific description of Anchi/lovi/.v hamatus, from 

 which I reproduce the following passages. 



» — — — Segments of the thorax six; the first and second soldered together; the five 

 anterior subequal; the sixth (the seventh normal) narrows posteriorly, and is nearly as long 

 as the two preceding. First pair of ghathopoda shorter and slenderer than the second; meros 

 of the same length as the preceding joint, slightly produced interiorly at the distal extremity 

 — the produced portion finely serrated below and anteriorly, at the angle one of the serru- 

 lations produced to a fine aoicular spine; carpus long, at inferior apex a slender spine pro- 

 podos somewhat shorter than the carpus, arched; dactylus about one-half the length of the 

 propodos, arched, acute, notched below the apex, with a wing-like plate on either side of 

 base. The carpal and meral joints of the second pair of gnathopoda neither produced, nor 

 spiniferous; dactylus less than one-half the length of the propodos; with these exceptions the 

 second pair is similar to the first. First and second pairs of thoracic feet longer than the 

 third; the first pair longer than the second; the external surface of the coxre ridged along 

 the middle, with posterior angles acute, spinous; all the joiuts narrow and elongate; claw an- 

 chylosed with the tarsus, and fixed at a right angle to it; the apex of the tarsus produced in 

 the form of a long, straight, acute spine. The third pair of thoracic feet enlarged, more robust 

 than the others, with coxa ridged on the middle of the external surface, and with the anterior 

 and posterior margins armed with short, stout spines; meros slender, convex posteriorly, and 

 anteriorly concave; anterior surfaces of the carpus and meros armed with long, sharp teeth — 

 three on the latter, and seven on the former; the fifth tooth, counting from the base of the 

 carpus, much larger and longer than the others; propodos about half the length of the carpus, 

 arched; dactylus small, anchylosed, fixed at a right angle to the propodos. Fourth and fifth 

 pairs of feet subequal, shorter than the preceding, with the anterior angles of coxae spinous; in 

 other respects similar to the preceding. — — — » 



In 1883 he gave a new description of male and female specimens under the name 

 Phronimella elongata, Claus. The following passages may be quoted. 



» Female: — — — The first pair of caudal appendages terminate half way the rami of the 

 third pair; the second pair rudimentary, represented only by a projecting tuberele». 



»Male: The body of the animal smaller and stouter than the female; the last two 



joints of the third pair of feet' relatively shorter, and all the feet shorter and more robust; the 

 fifth joint of the fifth pair about one-half the length of the fourth joint, and impinges on the large 

 tooth anterior to its middle. The second pair of caudal appendages well developed, and extends 

 to the commencement of the rami of the first pair.» 



