153 
female (the one figured), no male, but six free ovisacs; in another specimen were detected: 
one female, one male and eight free ovisacs (all with eggs); in a third: one female, one 
male and nine ovisacs (four of these glued together); in a fourth: one female, one male, and 
nine ovisacs (some of them with Nawplii). In a fifth specimen I discovered: one female, 
two males and twenty ovisacs, ten of which adhered to each other in one lump, four in 
another; several of them contained larvee, some of which had even thrown off the egg- 
membrane. In a sixth specimen, at least seventeen ovisacs adhered to each other in a big 
lump which surrounded the female, so that only part of one of its sides helped to form the 
outer wall of the lump, while a male was sitting in a hole between the ovisacs on the 
opposite side; the whole lump had shaped itself after the cavity of the marsupium, it was 
nicely smoothed and had a slight longitudinal groove on the surface, which was turned 
towards the ventral side of the animal; all the ovisacs were more or less flattened and 
fitted together like mosaic; some of them contained eggs, some of them halfdeveloped, others 
oD 
quite developed larvee. 
28. Spheronella modesta n. sp. 
(PIX, fig. 2a—2i). 
FEMALE. It always seems to be longer than broad, ovate, and a specimen which 
had laid numerous ovisacs, was 1:23 mm. long and °87 mm. broad (fig. 2a). The head is 
small, well defined from the trunk. The frontal border rather considerably produced; its 
margin naked and centrally a little emarginate; close behind this margin on the lower side is an 
odd, tolerably good-sized square area (fig. 2d, x) with rounded comers; the area seems to 
be pierced with rather numerous holes. Antennule pretty long and powerful, 3-jointed, 
with some sete of medium length. Antenne wanting. Principal branches of the maxillule 
rather short, additional branch long. Basal joint of the maxille large and smooth; a number 
of taps are seen on the distal part of the commecting membrane between the first and the 
second joint; second and third joints separated. Maxillipeds good-sized, their basal joint has 
several rather short transverse rows of very fine, short hairs, second and third joints separated ; 
the last joint terminates in a point inside which it has some spines; the spine at the end 
of the third joint shorter than in S. decorata, but of a similar shape and equipment.  Sub- 
median skeleton well developed, with three pairs of longitudinal lists, parts of which are 
rather broad, inside the maxilla; no eminence behind the base of the maxillipeds. The 
lateral margin of the head has a row of short hairs. In one specimen the trunk is quite 
naked, in another it has a number of simple, moderately long hairs which are partly arranged 
in rows on a minor area behind the head. Genital area smaller than the head (fig. 2 a), 
much broader than, or about twice as broad as. long (fig.2e); it is a chitinised, somewhat 
irregular and, according to the individuals, somewhat differently shaped plate with a cen- 
trally inflexed posterior margin; the genital apertures oblique and considerably curved, 
20 
