CIVETTICTIS CIVETTA CONGICA Cabrera, 1929. Congo Civet.

Five hosts at Torit and Obbo during the dry and rainy seasons yielded a pair of adult Ixodes cavipalpus, seven adult R. s. simus, a pair of adult R. s. sanguineus, fifteen adult and two nymphal H. 1. leachii, and thirty adult H. leachii muhsami.

HERPESTES SANGUINEUS SANGUINEUS (Ruppel, 1835). Black tipped

Mongoose.

Several animals were examined between Juba and Kapoeta but ticks were found only on one at the latter locality. They were six immatures of A. variegatum and seventeen adult H. leachii muhsami.

ICHNEUMIA ALBICAUDA ALBICAUDA G. Cuviet, 1829. White-tailed

Mongoose.

A few adults and two nymphs of H. 1. leachii were found on specimens at Yei and Torit. Infestations of H. Teachii muhs ami were much heavier, approximately two hundred adults and three nymphs having been taken from seven hosts in these localities. Several other white tailed mongooses examined were not parasitized.

FAMILY HYAENIDAE

CROCUTA CROCUTA FORTIS Allen, 1924. Spotted Hyena.

The only spotted hyena taken at Torit was host to eight pairs of adult R. s. simus.

CROCUTA CROCUTA SUBSP.

At Jebel Kathangor a nymphal A. variegatum was the only tick found on a spotted hyena.

FAMILY FELIDAE

FELIS LYBICA UGANDAE Schwann, 1904. Uganda Wild Cat.

An Opari specimen yielded a male A. lepidum and a male R. s. sanguineus; another at Torit a female H. leachii muhsami.

FELIS SERVAL PHILLIPSI Allen, 1914. Phillips' Serval.

Three pairs of adult R. s. sanguineus were found on a serval at Torit.

PANTHERA PARDUS CHUI Heller, 1913. East African Leopard.

Several leopards examined at various localities throughout Equatoria Province were free of ticks.

PANTHERA LEO LEO Linnaeus, 1758. African Lion.

Only two of many lions examined yielded ticks; these, from Torit, were ten adult H. 1. leachii and nine adult R. s. simus.

TUBULIDENTATA (AARD_VARKS)

Aardvarks (ORYCTEROPODIDAE, Orycteropus afer) were not en countered in this Province.

PROBOSCIDEA (ELEPHANTS)

FAMILY ELEPHANTIDAE

LOXODONTA AFRICANA OXYOTIS Matschie, 1900. Sudan Plains Elephant.

No elephants were examined in this Province west of the Nile but specimens of D. c. circumguttatus found on grass near Kajo Kaji probably had been associated with these animals. East of the Nile four of many elephants seen immediately after death were infested. The numbers of ticks on each, all adult A. tholloni, were six, twelve, 23, and 197. It is of interest that in Bahr El Ghazal Province numerous elephants were infested only by large numbers of R. simus simus and R. simus senegalensis, none by the specific elephant parasite, A. tholloni.

HYRACOIDEA (HYRAXES)

FAMILY PROCAVIIDAE

HETEROHYRAX BRUCEI HOOGSTRAALI Setzer, 1956. Hoogstraal's Large toothed Rock Hyrax.

This is the common hyrax of rocky outcrops in the plains east of the Nile and some twenty were examined. Thirteen larvae and a female A. brumpti infested three specimens at Imurok and Imatong. Eleven adults and a nymph of the East African hyrax tick, H. bequaerti, were also attached to the two Imurok specimens as well as a single male R. s. sanguineus. Twenty-one immature R. ?sp. were also found on these hyraxes; these latter may

prove to be R. ?distinctus. Elsewhere in Torit and Juba Districts no ticks occurred on these hyraxes.

PROCAVIA HABESSINICA SLATINI Sassi, 1906. Slatin's Rock Hyrax.

In western Juba District and west of the Nile, Slatin's rock hyrax is common. A single male R. ?distinctus was taken at Rejaf and seven male H. bequaerti at Lui. Both ticks are specific on hyraxes.

PERISSODACTYLA (ODD-TOED UNGULATES)

FAMILY RHINOCEROTIDAE

CERATOT HERIUM SIMUM COTTONI (Lydekker, 1908). Northern Square lipped or White Rhinoceros.

DICEROS BICORNIS SOMALIENSIS (Potocki, 1900). Somali Black
Rhinoceros.

No ticks from either of these animals are available from the Sudan and none were examined for ectoparasites during the present investigation. The white rhinoceros occurs only west of the Nile and the black rhinoceros only east of the Nile though stragglers of the latter are reputed rarely to be seen west of the Nile. It is probable that the Sudan specimens of A. rhino cerotis and D. rhinocerinus from both Equatoria and Bahr El Ghazal Provinces, all found on grass, were associated with these animals.

ARTIODACTYLA (EVEN TOED UNGULATES)

FAMILY SUIDAE

PHACOCHOERUS AETHIOPICUS BUFO Heller, 1914. Sudan Warthog.

A warthog at Lugurren was infested by a female H. truncatum, fifteen adult R. s. simus, and a male R. simus senegalensis. At Sunat, 25 adults of R. simus senegalensis were taken from one host and at Kheirallah seven adults of the same tick were found on a warthog. Several warthogs in Torit District were uninfested.

SUS SCROFA SENNAARENSIS Gray, 1868. Sudan Wild Boar.

Two wild boars near Torit were infested by a few adults of H. truncatum, R. pravus, and R. s. simus.

FAMILY HIPPOPOTAMIDAE

HIPPOPOTAMUS AMPHIBIUS AMPHIBIUS Linnaeus, 1758. Hippopotamus.

Two hippos shot at Nimule in May and October (rainy season) each had a pair of adult R. s. simus attached to the ears.

FAMILY GIRAFFIDAE

GIRAFFA CAMELOPARDALIS SUBSP. Nubian Giraffe.

Scattered giraffe populations occur from the Nile eastward at least to Kapoeta but no specimens were obtained for the present study. A comparatively large amount of significant data on infestation of giraffes is presented under Bahr El Ghazal Province.

FAMILY BOVIDAE

SYNCERUS CAFFER AEQUINOCTIALIS (Blyth, 1866). Northeastern Buffalo

Buffalos are common from Yei District eastwards and are al most invariably infested by ticks all of which (in the present collection) are adults. The buffalo amblyomma, A. cohaerens, however, is represented by only a single collection of 34 males

from the Boma Plains; fifteen male A. lepidum were taken from the same animal, along with twenty R. s. simus, eighteen R. simus senegalensis, a single R. s. sanguineus, and 55 A. variegatum. Variable numbers of this last tick infest almost every buffalo on the east bank of Equatoria Province. Small numbers of H. rufipes and H. truncatum on a few buffalos in this Province are in striking contrast to the high rate and density of infes tation by these ticks in northeastern Bahr El Ghazal Province. In eastern Equatoria, infestations of R. s. simus are most com mon next to those of A. variegatum. In Juba and Yei Districts smaller numbers of R. compositus, R. longus, and R. supertritus have been collected from buffalos.

Possibly the most interesting data resulting from listing the antelopes below are the generally low or moderate numbers of ticks infesting them on the east bank of Equatoria Province. Had more collections been obtained during the rainy season, the rate and density of infestation might have been somewhat higher. TRAGELAPHUS SCRIPTUS BOR Heuglin, 1877. Nile Bushbuck.

Several bushbucks obtained near Nimile were uninfested.

TAUROTRAGUS DERBIANUS GIGAS (Heuglin, 1863). Derby's Giant Eland.

Near Meridi, five adult B. annulatus and thirteen adult B. decoloratus were taken from a giant eland.

TAUROTRAGUS ORYX PATTERSONIANUS Lydekker, 1906. East African
Eland.

An eland at Loronyo bore a female A. lepidum and a pair of adults and seven nymphs of A. variegatum. Single adults of R. s. simus were the only ticks found on two elands near Torit and Kidepo. At Tarangore another yielded four adult R. s. sanguineus and one at Terakeka a single adult R. e. evertsi.

CEPHALOPHUS CAERULUS MUSCULOIDES Heller, 1913. Eastern Blue Duiker.

Blue duikers are not uncommon in the mountain forests east of the Nile but they are difficult to obtain. A female H. parmata has been taken from an animal in the Noli Hills.