Sabatieria subrotundicauda sp. nov. (Figure 8 and 9) Description Studied material: 3 males; 6 females. Type material: Male holotype MNRJ 311; Female allotype MNRJ 312; Two male paratypes 63–64 NM LMZOO­UFPE; Five female paratypes 65–69 NM LMZOOUFPE. Type locality: Campos Basin (Rio de Janeiro, Pernambuco, Brazil): deep­sea found in 750 m depth, siltclay sediments. Measurements: see table 5. TABLE 5. Measurements (μm) of Sabatieria subrotundicauda sp. nov. Etymology: The specific name subrotundicauda refers to the tail shape which is almost rounded. Male: Body cylindrical. Punctated cuticle with transversal dotted lines, more evident in tail region. Lateral differentiation present, being punctations larger and more widely spaced. Somatic setae very short. Head rounded and attenuated. Six inner labial setae, six outer labial setae short and four cephalic setae very short. Amphidial fovea spiral with two and a half turns. Buccal cavity cup­shaped. Pharynx clavate, gradually expanding towards the posterior end, but without distinct bulb. Cardia short and small. Nerve ring slender located at the middle of pharynx and anterior to secretory­excretory pore. Ventral gland is located between the end of pharynx and the beginning of intestine. The reproductive system possesses two opposed and outstretched testes anterior one on the left and posterior one on the right side of the intestine. Four pairs of ejaculatory glands are present. Spicules paired, ventrally curved and with a projection like an arrow in the distal part; proximal end with a septum. There are several glandular cells located around the spicules. Gubernaculum small with a narrow apophisis. Seven pore­shaped precloacal supplements are present. Tail short and rounded. It presents a slightly narrow region at 2/3 of the tail. Three caudal glands are present ending in a spinneret. Two caudal setae very short. Female: Females are similar to males. Internal labial and external labial papilliform. Cephalic setae short. Amphidial fovea spiral with two turns and a ...