Southward E. C., Andersen A. C. & Hourdez S. 2011. — Lamellibrachia anaximandri n. sp., a new vestimentiferan tubeworm (Annelida) from the Mediterranean, with notes on frenulate tubeworms from the same habitat. Zoosystema 33 (3): 245–279.

A new species of lamellibrachiid vestimentiferan, Lamellibrachia anaximandri n. sp., has been found in the Eastern Mediterranean, close to cold seeps of fluid carrying dissolved methane and sources of sulfide in superficial sediments. It occurs at about 1100 to 2100 m depth, on some of the mud volcanoes on the Anaximander Mountains, south of Turkey, on the Mediterranean Ridge, south of Crete, and on the Nile deep-sea fan. In addition, it has been obtained from rotting paper inside a sunken ship, torpedoed in 1915 and lying at 2800 m depth, southeast of Crete. Some frenulate pogonophores also occur on the mud volcanoes (including a species of Siboglinum resembling S. carpinei and tubes of other unidentified genera). The new Lamellibrachia is the first vestimentiferan species to be described from the Mediterranean. It differs from L. luymesi taken from the Gulf of Mexico population in the very weak development of collars on its tube and in having a smaller number of pairs of branchial lamellae in the branchial plume. Sequencing of the COI and the mt16S genes confirms a difference at the species level between the new species and L. luymesi, and adifference between these two species and four described species of Lamellibrachia from the Pacific Ocean. The largest individuals of L. anaximandri n. sp. may be many years old, but there are numerous young individuals at some sites, showing that favourable conditions are available for settlement and early growth. The development of the branchial plume in a series of young stages reveals that the sheath lamellae, which are characteristic of the genus Lamellibrachia, begin to form only after the establishment of several pairs of branchial lamellae. Examination of the adult trophosome by transmission electron microscopy shows Gram-negative bacteria without internal stacked membranes, indicating that the symbionts are most probably sulfide oxidizing.

Chaari M., Derbel H. & Neifar L. 2011. — Oesophagotrema mediterranea n. gen., n. sp. (Platyhelminthes, Digenea, Zoogonidae), parasite of the needlefish Tylosurus acus imperialis (Beloniformes, Belonidae) from off Tunisia. Zoosystema 33 (3): 281–286.

Oesophagotrema mediterranea n. gen., n. sp. (Digenea, Zoogonidae) is described from the needlefish Tylosurus acus imperialis (Beloniformes, Belonidae) off the Tunisian coast. Oesophagotrema n. gen. is distinguished from all other Lepidophyllinae genera by the combination of a prominent rounded ventral sucker, caeca reaching to the anterior edge of the posterior testis, testes arranged in tandem in the middle third of the hindbody and the vitellarium in symmetrical lateral bunches located between the ovary and anterior testis. This species shows a typical specific site of infection within the digestive tract, i.e., the oesophagus and vomer teeth. The position of this zoogonid digenean on the oesophagus is discussed.

Gómez J. F., Nieves-Aldrey J. L., Hernández Nieves M. & Stone G. N. 2011. — Comparative morphology and biology of terminal-instar larvae of some Eurytoma (Hymenoptera, Eurytomidae) species parasitoids of gall wasps (Hymenoptera, Cynipidae) in western Europe. Zoosystema 33 (3): 287-323.

We present a taxonomic and biological study of the genus Eurytoma Illiger, 1807 (Hymenoptera, Eurytomidae), based on the morphology and biology of the terminal-instar larvae of 13 species living as parasitoids in the galls of European species of cynipid gall wasps. We provide the first detailed descriptions of the terminal-instar larvae of the studied species, illustrating diagnostic characters for the family and the studied genera with SEM pictures. We also provide a species key for the identification of Eurytoma larvae associated with cynipid galls, based on particular characters associated with the head, mouthparts and mandibles. Although we find only limited informative variation in body shape, the head and mandibles provide many characters of potential taxonomic and phylogenetic value. We summarise the larval biology of the 13 Eurytoma species inhabiting cynipid galls. Eurytoma larvae are usually solitary idiobiont ectoparasitoids of the host larva or of larvae of cynipid inquilines that also often feed on gall tissue.

Segniagbeto G. H., Trape J. F., David P., Ohler A., Dubois A. & Glitho I. A. 2011. — The snake fauna of Togo: systematics, distribution and biogeography, with remarks on selected taxonomic problems. Zoosystema 33 (3): 325–360.

We present here an annotated list of the 91 snake species currently recorded from Togo, West Africa. Seven species are here recorded for the first time from this country: Calabaria reinhardtii, Hapsidophrys lineatus, Lycophidion nigromaculatum, Philothamnus carinatus, Leptotyphlops cf. narirostris, Letheobia crossi and Typhlops lineolatus. Main morphological data of examined specimens are provided. Some taxonomical problems are pointed out and discussed. The distribution of these species is detailed. We also provide a short discussion on the snake trade in Togo.

Glasby C. J., Wilson R. S. & Bakken T. 2011. — Redescription of the Indo-Pacific polychaete Neanthes pachychaeta (Fauvel, 1918) n. comb. (Annelida, Phyllodocida, Nereididae) and its synonyms. Zoosystema 33 (3): 361–375.

Type specimens of three Indo-west Pacific nereidid polychaetes are redescribed: Ceratonereis pachychaeta Fauvel, 1918, Nereis (Ceratonereis) ramosa Horst, 1919 and Nereis (Lycoris) anchybchaeta Horst, 1924. No significant morphological differences were found between the three species. The latter two names are therefore relegated to junior synonymy with the oldest, C. pachychaeta. A lectotype is identified from among the syntypes of C. pachychaeta in order to stabilise the name and type locality of the species. Further, C. pachychaeta is newly transferred to the genus Neanthes, based on a comparison of generic level features, especially the presence of paragnaths on the oral ring. Newly collected specimens of Neanthes pachychaeta n. comb, from Indonesia, Philippines, northern Australia, Japan and French Polynesia are described and the living coloration reported for the first time. Apart from its striking red-orange colour, the species may be recognised by having paragnaths atop a plate-like basement and thick, hammer-headed fused falcigers in posterior parapodia. The new material and new synonymies give N. pachychaeta n. comb, a widespread Indo-Pacific distribution.

Sanborn A. F. 2011. — Checklist of the cicadas of French Guiana including new records and the description of nine new species (Insecta, Hemiptera, Cicadoidea, Cicadidae). Zoosystema 33 (3): 377–418.

The cicada fauna of French Guiana is surveyed. A total of 53 species representing 17 genera, six tribes and two subfamilies has been reported as inhabiting the country. Nine new species Hyantia bahlenhorsti n. sp., Carineta apicoinfuscata n. sp., C. guianaensis n. sp., C. modestan. sp., C. quinimaculata n. sp., Selymbria danieleae n. sp., Taphura boukrdi n. sp., T. egeri n. sp., and T. maculata n. sp. are described. The first records of Ariasa marginata (Olivier, 1790), Fidicina robini Boulard & Martinelli, 1996, Fidicinoides jauffreti Boulard & Martinelli, 1996, Fidicinoides sucinalae Boulard & Martinellli, 1996, Guyalna nigra Boulard, 1999, Majeorona truncata Goding, 1925, Majeorona bovilla Distant, 1905, Carineta argentea Walker, 1852, C. doxiptera Walker, 1858, C. illustris Distant, 1905, C. lichiana Boulard, 1986, and C. ventralis Jacobi, 1907 are provided. In total, the cicada fauna of French Guiana is increased by 64.2%, with endemism determined to be 34%.