THE FLOSCULARIA. 61 



III. The FLOWER-SHAPED ANIMALCULES, or Floscula- 

 ria, (pis. vi, vn, vm), properly so called, are very elegant 

 types of the family, and are distinguished by the pecu- 

 liar character of the rotator, which is divided into more 

 ih&ufour lobes. In this beautiful species, the ELEGANT 

 FLOSCULARIA, (F. ornata, pi, vi), the sheath is hya- 

 line, and the rotatory organ consists of six lobes, armed 

 with very long cilia. The body is capable of being 

 protruded beyond the case almost to its base, (pi. vi, 

 fig. 1), and can be drawn in so as to include the cilia, 

 (pi. vi, fig. 2), in which position the sheath is corru- 

 gated in circular folds. From the transparency of the 

 sheath and body, the internal organs are distinctly visi- 

 ble. The jaws and teeth (see pi. vi, fig. 1, a, and lign. 

 5, fig. 1) are seen beneath the pharynx, or constriction 

 of the alimentary canal, and several Monads and other 

 minute polygastrians in the stomach, (pi. vi, fig. 1, b). 

 A young one, with two red eyes, is visible in the ovisac, 

 (fig. 2,c). In another example, (pi. vn), the body is par- 

 tially protruded over the top of the sheath, within 

 which are three well-developed eggs. 



IV. The other species under the field of view, the 

 HORNED FLOSCULARIA, (Floscularia probostidea, pi. vm), 

 has the rotator divided into six lobes, with shorter cilia 

 than in F. ornata, and these surround a horn, or proboscis, 



