564 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



FIG. 021. BOPYRIXA 

 ABBREVIATA. FIRST 

 LAMELLA OF MAR- 

 SUPICM. 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 

 abdominal segments are represented on the longer side of the bod}: by 

 four rounded lobes. The last two segments are com- 

 pleteh r fused, and are not indicated 

 on either side. 



The pleopoda, as far as could be dis- 

 cerned, consist of four pairs of single 

 branched lamellae. 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 Hippolyte zostericola 

 (Smith). 



This species differs from Bopyrinavirbii(W&\iz), a 

 in the much smaller first lamellae 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. virbii 

 it extends nearly to the abdomen, that of the longer side 

 reaching only the posterior margin of the second tho- 

 racic segment, while in B. virbiiit 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. vvrbii 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 B. virbii the abdo- 

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

 The specific name refers to the abbreviated first lamella} of the 

 marsupium. 



Type. Cat. No. 29097, U.S.N.M. 



FIG. 623. BOPYRINA 

 ABBREVIATA. MALE. 

 x 77i. 



"Kossman, Zeite. f. Wiss. Zool., XXXV, 1881, p. 666-679, pis. xxxiv-xxxv. 



