Helminths of the San Diego Alligator Lizard, (Gerrhonotus multicarinatus webbi) (Anguidae) Author(s): Stephen R. Goldberg and Charles R. Bursey Source: Journal of Wildlife Diseases, 26(2):297-298. Published By: Wildlife Disease Association DOI: http://dx.doi.org/10.7589/0090-3558-26.2.297 URL: http://www.bioone.org/doi/full/10.7589/0090-3558-26.2.297

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Journal

of Wildlife

Diseases. ©

Helminths

of the San Diego

(Gerrhonotus Stephen 90608, 16146,

2

ticarinatus

web/it)

pipiens)

Both

0.

new

host

from

and

the

notus

only

fauna

sp. represent helminth

4/96

(4%)

in this cestode,

helminth

host. web/if,

ranges

body

cavity

with with

south-

1971.

Baja Five (Behof this and

rostellum rounded

from

were

Whittier,

and

examined

1990

California

Pennsylvania

separately.

was slit longitudinally a dissecting microscope.

Each examined Liven and

for

iodine and hematoxylin.

intestine of a male vent length (SVL)

(Gerrho-

em Washington (USA) to central California, Republic of Mexico. subspecies are currently recognized len and King, 1979). The purpose report is to describe the prevalence

examined

pp. 297-298

Association

Sharon,

presence

cestodes

Only four of the 96 specimens infected with helminths. One Oochoristica sp. was found

prevalence,

lizard

were

College,

Campus,

organ under

stained stained

a

fauna.

alligator

multicarinatus)

in-

and

Whittier Valley

1990,

Disease

of Mesocestoides sp. Each he!minth was identified utilizing a glycerol wet mount. For detailed microscopy, nematodes were

mdi-

multicarinatus

depauperate

southern

of

community

Nematode,

Gerrhonotus

Anguidae,

The

Prevalence

helminth

two

Oswaldocru(Oochoristica sp.).

of a helminth

words:

County, of

Shenango

intestines

the

mul-

presence

of Biology,

University,

and

sp.

was

‘Department State

of

Angeles

the

Oochoristica

and

lack

R. Bursey,2

specimens

cestode

species)

depauperate

survey,

a

records. (all

(Anguidae)

Pennsylvania

Los

revealed

pipiens

fection

webb:)

(Gerrhonotus

(Ph ysaloptera

nematodes

Key

96

lizard

(USA)

cating

of

alligator

California

Charles

of Biology,

Necropsv

Diego

zia

and

Department

ABSTRACT: San

Lizard,

multicarinatus

R. Goldberg,’ USA; USA

Alligator

26(2),

Wildlife

The

scolex but suckers.

alligator 128 mm, of

this

were

(4%) were specimen of in the small lizard, collected

snoutMay

cestode

supported In addition,

lacked

a

four simple, uterine cap-

sules each contained a single egg, which identified it as a linstowiid cestode of the genus Oochoristica (Conn, 1985). Two third stage Physaloptera sp. larvae were found in the small intestine of a male

intensity of helminths from the San Diego alligator lizard (G. multi.carinatus webbi), a subspecies found in southern California.

alligator

lizard

(SVL

mm)

collected

May 1971. waldocruzia

webbi

stomach of a female alligator lizard (SVL 115 mm) collected July 1971. Likewise, two male and two female 0. pipiens were found in the small intestine of a female (SVL 85 mm) from August 1971. The only

tusa)

found a nematode and two cestode

ietta gerrhonoti sp.). We examined

webbi

collected Whittier

96 54

G.

multicarinatus

females).

They

were

in the Puente Hills, north (Los Angeles County, California,

USA;

34#{176}01’N, 117#{176}57’W;

They 1970

were captured to November

from were

1959, 1963, 1964 included. Lizards

stored

reBaer-

larval Mesocestoides

and

(42 males,

(Physaloptera species (adult

in neutral

elevation

150

genus of

buffered

from preserved

two

10%

and two female were found in

tnichostrongylid

m).

1968 and

Osthe

nematodes

re-

ported from North American lizards is waldocruzia (see Baker, 1987). Prevalence for Physaloptera sp. 1/96 (1%); prevalence for 0. pipiens 2/96 (2%) and for Oochoristica sp. it

by hand during March 1971; single specimens and were

of

Two male pipiens

121

Telford (1965, 1970), in the only other surveys on the helminths of G. multicarinatus

Oswas was was

1/96 (1%). The finding of 0. pipiens and Oochoristica sp. in G. multicarinatus webbi are new host and geographic records. Representative specimens were deposited

formalin.

The body cavity was opened by a longitudinal incision from vent to throat and the gastrointestinal tract was excised. Esophagus, stomach, and small and large

in the U.S. National (Beltsville, Maryland sion 297

numbers

for

Parasite 20705, Oochoristica

Collection USA; accessp.,

Physa-

298

JOURNAL

loptera and

OF WILDLIFE

sp. and 0. 80819,

We Puente 1970)

pipiens

are

80817,

80818

lationist munity

in

community high densities We thank

respectively.

did

not

Hills found

find

webbi the Palos

Angeles

County,

cific Ocean. ulation was ment and temperatures

B.

gerrhonoti

the

population. Te!ford (1965, it to be common in a G. mu!-

ticarinatus west on

population Verdes

about Peninsula

California)

50 km (Los

along

the

population. may shorten Puente Hills It is conceivable

It is thought these conditions the reproductive season of the population (Goldberg, 1972). that the cool, humid coastis more

cestodes This idea

conducive

than seems

one considers that most todes have been found while linstowiid cestodes

to

the drier, plausible

ne-

hotter when

nematotaeniid cesin toads and frogs are typical of liz-

ards (Schmidt, 1986). Thus, it might be expected that the cestode niche in a host population inhabiting a drier habitat would be filled by a different Oochoristica sp. Both populations, and Puente

Hills

in the small

cestode

are

numbers

in terms

dividuals. to the diet

However, of alligator

such

in particular

population,

contained

the

species

they and

They

are

in-

this could be related lizards. Rather than

described

King (1979) as feeding vertebrate or vertebrate In general, a nonselective several host criteria used

by

Behler

on almost they could

rich in (Pence, Adrian

for

species occurring 1989). Sales and Gregory

assistance

in collection

and any incatch.

diet is one of the to predict an iso-

at S. of

the

parasites. LITERATURE BAKER,

M. R.

1987.

sitic

in

amphibians

pers

in

Biology,

foundland, 325

CITED

Synopsis

of the nematoda

and

reptiles.

Memorial

St. John’s,

para-

Occasional

University

Paof

Newfoundland,

New-

Canada,

pp.

J. L.,

BEHLER, Society and

F. W.

AND

field

guide

amphibians.

New

York,

KING. to

Alfred 743

1979.

North

The

Audubon

American

A.

Knopf,

reptiles New

York,

pp.

D. B. 1985. Life cycle and postembryonic development of Oochoristica anolis (Cyclophyllidea: Linstowiidae). The Journal of Parasitology 71: 10-16. GOLDBERG, S. R. 1972. Reproduction in the southern alligator lizard Gerrhonotus multicarinatus. CONN,

Herpetologica PENCE,

28:

D. B.

malian

1989.

hosts:

component

Concepts and

Community

267-273.

community

Helminth at

the

compound

ecology

of

of mam-

infracommunity,

community

In

levels.

helminths:

Patterns

processes, G. W. Esch, A. 0. Bush, (eds.). Chapman and Hall, London,

and

and J. M. Aho England, pp.

233-260.

G. D. 1986. Handbook tification. CRC Press, Boca

SCHMIDT,

noteworthy

of helminths

of both

as

being restricted to a selective insectivorous diet as are many lizards (Stebbins, 1985), alligator lizards eat a broad spectrum of prey that includes slugs, snails, sow bugs, insects, scorpions, spiders, bird eggs, young birds and small mammals (Stebbins, 1954, 1985).

Felzien

not exposed to high summer as was the inland Puente Hills

al environment

species poor, low-density cornof helminths versus an interactive

Pa-

The coastal Palos Verdes popfrom a coo!, humid environ-

was

matotaeniid interior.

VOL. 26, NO. 2, APRIL 1990

DISEASES,

of tapeworm Raton, Florida,

iden675

pp. R. C.

STEBBINS,

1954.

Amphibians

and

reptiles

of

western

North America. McGraw-Hill, New York, New York, 536 pp. 1985. A field guide to western reptiles and amphibians. Houghton Muffin Company, Boston, Massachusetts, 336 pp. TELFORD, S. R. 1965. A new nematotaeniid cestode from California lizards. Japanese Journal of Experimental

Medicine

1970. sitism

among

populations.

35:

301-303.

A comparative some American

study

southern

Midland

516-554.

Received

for

publication

2 July

of endopara-

California

1989.

Naturalist

lizard

83:

Helminths of the San Diego alligator lizard, (Gerrhonotus multicarinatus webbi) (Anguidae).

Necropsy of 96 specimens of the San Diego alligator lizard (Gerrhonotus multicarinatus webbi) from Los Angeles County, California (USA) revealed the p...
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