118 MATUTA PICTA. 



is parallel with the inferior margin (8ectiou B, Miers), hy 

 the little prominent antero-laterul tubercles, by those 

 of the surface and of the postero-lateral margins being 

 nearly obsolete , by the extraordinary long lateral margi- 

 nal spines, by the structure of the external ridge of the 

 hands etc. 



The coloration of our specimens has unfortunately much 

 faded , but seems to be marked by numerous , minute spots. 



Our largest male specimen has the carapace , measured 

 hetiüéen the marginal spines, 27 mm. broad, and 26 mm. 

 long: length of the marginal lateral spines 9 mm. (In 

 other specimens the spines being rather longer). 



The acute triangular groove on the middle of the upper 

 margin of the immobile finger, a character of the mature 

 male, occurs already in one of our specimens in which 

 the carapace is only 22 mm. long. 



Mat. maculata Miers occurs in the eastern and Chinese 

 seas and appears to be a rather rare species. 



6. M a tut a pic t a (Hess.) Miers. 



Matuta picta Hess, Archiv fur Naturg. XXXI, pag. 158, 

 pi. VI, fig. 13. (1865;. — Matuta picta, Miers, On the 

 Oxystomatous Crustacea, pag. 246, Pi. XL, fig. 5 — 7. — 

 Matuta di^tinguenda Hoffmann, Recherches sur la Faune 

 de Madagascar, Crust, p. 27, PI. VI and VII (1874). — 

 Matuta obtusifrons, Miers, 1. c. pag. 247, pi. XL, fig. 8 

 and 9. Our collection contains ; 



1". Seventeen fine specimens (8 (^, 9 Q), collected in the 

 Bay of Pasandava (Madagascar), by Messrs. Pollen and van 

 Dam , types of the Matuta distinguenda Hofi"mann. 



2^. Three beautiful specimens (2 cf, 1 young female), 

 collected on the shores of the island of Banda-neira (Mo- 

 luccas), lately presented by Mr. Semmelink. 



Our Pasandava-specimens entirely agree vi^ith Mr. Miers' 

 description of Mat. picta , so that Mat. distinguenda Hoffmann 

 is certainly identical with Mat. picta Hess. The figures of 



Note» from the Leyden Museum , "Vol. III. 



