564 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



Fig. 621. — Bopyrina 

 abbreviata. first 

 lamella of mar- 



SUPIUM. X 27. 



Fig. 622. — Bopyrina 



ABBREVIATA. MAX- 

 ILLIPED. X 41. 



of the last four segments are not separated off from the segments; 

 they occupy the entire lateral margin. 



The abdominal segments are completely fused in the middle of the 

 abdomen. On the lateral margin of the shorter side of the bod}^ there 

 is no indication whatever of the coalesced segments. The first four 

 alxlominal segments are represented on the longer side of the bod}' by 

 four rounded lobes. The last two segments are com- 

 pletely fused, and are not indicated 

 on either side. 



The pleopoda, as far as could be dis- 

 cerned, consist of four pairs of single 

 branched lamella?. Three pairs were 

 distinctly seen; the last pair are very 

 indistinct. 



The first lamella of the marsupium 

 on the shorter side extends about one-third the length of the body ; on the 

 longer side, the first lamella extends to the posterior margin of the 

 second thoracic segment. 



Male with head large, rounded in front. Eyes large, irregularly 

 shaped. All seven segments of the thorax distinct. Abdomen narrower 

 than the thorax, and tapering to a narrow extremity. In one specimen all 

 six segments were more or less defined at the sides; in the other 

 specimen only the first three. Length of abdomen 

 about equal to one-third the length of the body. 

 Color white with markings of black or brown. 

 Nine specimens were collected by Mr. Henry Hemp- 

 hill at Puntarasa, Florida, on HlppoJyte zodericola 

 (Smith). 



This species differs from Bopyrina mrhii iy^ ^\tz)^"' 

 in the much smaller first lamelhv in the female, the la- 

 mella of the shorter side of the marsupium extending 

 but one-third the length of the body, while in B. mrhii 

 itextendsncarly to the abdomen, that of the longer side 

 reaching only the posterior margin of the second tho- 

 racic segment, while in B. iilrljii it extends to the poste- 

 rior margin of the fourth segment; in not having any 

 indicationof segmentation on the shorter side of the ab- 

 domen, while in B. virhii there is some indication, and in having the abdo- 

 men of the male rounded posteriorly with indications of segmentation at 

 the sides more or less during its entire length, while in />. r/rhll the abdo- 

 men is truncate posteriorly, with only the first two segments indicated. 

 The specitic name refers to the abbreviated first lamelhe of the 

 marsupium. 



Type.~OAt. No. 29097, U.S.N.M. 



Fig . 623. — Bop y ri n a 

 abbreviata. male. 



X llh. 



«Kossman, Zeits. f. Wiss. Zool., XXXV, 1881, p. 666-679, pis. xxxiv-xxxv. 



