234 ORDER LITINIA 



is about twice as long as the anal body diameter. Tail conoid. The eggs are 

 two to three times as long as the body is wide. The ova are arranged more or 

 less in single file, and the ovary extends two-thirds the way back to the vulva. 

 The proximal ends of the slender, somewhat tapering, rather frail, subacute spic- 

 ula lie opposite the body axis. There are two rather frail, simple accessory pieces. 

 Habitat: Sand-bar, Biscayne Bay, Florida, U. S. A. Flemming to glycer'ne 

 jelly. Fig. 7a, p. 233. 



-_--^._J>5-il_JJL___j-_ >(?)1 . 3 .. 



b. Alaimella truncata n. sp. - 6 u ^5 1.5 ~N\ 1.5 This, the type species 



of Alaimella, rather closely resembles Alaimella cincta. Secondary markings of 

 the cuticle faint, if any. Oesophagus as in cincta, except relatively a trifle nar- 

 rower. Intestine as in cincta, but narrow and displaying only two cells in cross- 

 section, the cells containing minute inconspicuous granules, 

 Proximally the slender, uniform, simple, frail and subacute 

 spicula expand much and suddenly, to form flattish cephala, 

 located about opposite the body axis. There seem to be two 

 simple, frail, sub-slender, more or less arcuate accessory 

 pieces, which are probably joined together at the anus. There 

 appear to exist throughout the length of the body an unusual x 750 V t i oe 

 number of nuclei ventrad from the narrow intestine, which keeps well to the 

 dorsal side. Both before and behind the anus there are some very slender ven- 

 trally submedian setae half as long as the body is wide. Ejaculatory duct about 

 one-third as wide as the body. Forward-pointing testes two-fifths as wide 

 as the body. In the single male examined, which appears to be immature, one 

 testis ended four tail-lengths from the anus, the other five tail-lengths from the 

 anus. At one tail-length in front of the anus there occurred one or two glands 

 (?) with very brilliantly staining nuclei, whose connections remain unknown. 



Habitat: Algae, near lighthouse, Bahia, Brazil. Sublimate to balsam. Fig. 7b. 



.8 4.5 9.5 12'" 96. 



8. Litinium aequale n. sp. 1.3 t-7/ i.s LS 1.7 ' " Oesophagus at first 

 three-sevenths, near the nerve-ring one-third, and finally three-sevenths, as wide 

 as the corresponding portion of the neck. Its lining is indistinct. There seems 

 tt>f nt/fi) i a- tot t/fi} * k e no distinct cardia. The intestine, which 



" is separated from the oesophagus by a collum 

 three-sevenths as wide as the neck, becomes at 

 once half as wide as the body. Its walls are 

 thick and its lumen faint. The granules con- 

 tained in the cells of the intestine are numerous 

 and more or less uniform. The anus is more or 

 less continuous, the rectum inconspicuous. The 

 hemispherical-conoid tail tapers from the anus 

 to the terminus. There are no caudal setae. 

 X750 The cau( ial glands are located in front of the 

 anus. The lateral fields are about one-fourth as wide as the body. The nerve 

 ring is of medium size and on either side of it are obscure nerve cells. From the 

 large, depressed, but rather conspicuous vulva, the vagina leads obliquely back- 

 ward a distance two-thirds as great as the body diameter. Judging from the size 

 of the ovum just before it leaves the ovary, the eggs are about one and one-half 

 times as long as the body is wide. In the broad, cylindroid ovary are twenty to 

 forty ova arranged single file except in the distal half, where they are arranged 

 irregularly. 



Habitat: Sand, Ocean Beach, Miami, Florida, U. S. A. Flemming to glycerine 

 jelly. Fig. 8. 



