Sabatieria bitumen sp. nov. (Figure 6 and 7) Description Studied material: 6 males; 5 females. Type material: Male holotype MNRJ 309; Female allotype MNRJ 310; Five male paratypes 54–58 NM LMZOO­UFPE; Four female paratypes 59–62 NM LMZOOUFPE. Type locality: Campos Basin (Rio de Janeiro, Pernambuco, Brazil), found at 750 and 1650 meters depth in silt­clay sediments. Measurements: see table 4. HOLOTYPE PARATYPE ALLOTYPE PARATYPE . continued on the next page Etymology: The specific name bitumen means oleum. It is named in honour to the Brazilian Petroleum Company (PETROBRAS). Male: Cylindrical body. Punctated cuticle with transversal rows of dots and lateral differentiation of larger dots, easily visible on tail region. Attenuated head. Six inner labial setae, six outer labial setae and four cephalic setae. Buccal cavity is small and cup­shaped. Somatic setae short. Amphidial fovea spiral with two turns and a half and occupying 78 % of the corresponding body diameter. 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, anterior to secretory­excretory pore. Ventral gland between the terminal region of the pharynx and the beginning of the intestine. Reproductive system composed by two opposed and outstretched testes, the anterior on the left and the posterior one on the right of the intestine. Spicules curved and paired with distal part hook­like, proximal end with a septum almost up to ½ of the spicule. This median rib divides the spicule into dorsal and ventral halves. There are several glandular cells located around the spicules. Gubernaculum short with a narrow dorsal apophysis. The spermatozoa are elongated. Eight pore­shaped precloacal supplements and a precloacal setae are present. Tail conical and short with 3 caudal glands endimg in a spinneret. Two caudal setae. Female: Females similar to males. Amphidial fovea spiral with three turns occupying 66 % of the corresponding body diameter. Buccal ...